'98 V70 GLT Transmission problems...

[bmdubya1198]

Got a new battery today, and I must say first off, that is the most powerful start I've gotten from that car. I'm very happy to have sufficient power now!
Now to the important part. I ran BrickDiag and got a couple codes...

Yazaki Instruments
2-2-1 Speed Signal
1-2-4 RPM Sensor Signal
1-2-1 Engine coolant temperature signal

--Response when attempting to clear
requesting DTCs...ok. (beginning command, obviously)
clearing DTCs... Info: -27FAF223819EC68
clearing DTCs failed, ECU
clearing DTCs...first read DTCs!requesting DTCs...ok.
clearing DTCs... Info: -27FAF223819EC68
clearing DTCs failed, ECU

Motronic 4.4
3-3-5 Request for MIL lighting from TCM

VGLA
No DTCs

Immo3
Not connecting w/ BrickDiag

ABS
Not connecting w/ BrickDiag

SRS
No DTCs

As you can see, a few ECUs errors and Windows had closed the program due to that. Not exactly what I'm concerned about, because VOL-FCR can access those, and there are no current faults on any of them. I discovered the Instruments could be read now, but not cleared. Don't know why, but it couldn't. Error code is listed on the summary part (which I pasted in below the codes).
Now for VOL-FCR. Like you suggested, I turned off real-time virus protection to free up RAM, and this is what I got out of VOL-FCR that I hadn't seen before:

Motronic 4.4
EFI-335 Wiring fault between AW 5O/42 and Motronic 4.4

That makes me think I was right about wiring. Now, I assume I'm going to have to play "find the broken wire" again. I'd like some insight as to whether this is on the actual "plugs" for the ECU and TCU or it's the bundle of wires I've been messing with that run out from the front of the ECU box.
I ran Torque again as well. CEL came back on afterwards, including this code moving from "pending" to "current" fault.

P1618- Powertrain

Appears to be bad communication between M44 and AW50-42. Again, backing my point about the wires.
I have NOT run the emulator yet, but I will once this rain lets up again. I have not yet run volvo850diag, simply because I still need to figure out how to get it to connect to my ELM327 adapter. I'm not the best with computers...
But when I do get it connected, I'll report back.
I'm happy that I've gotten where I have today, and now I want to get to the bottom of this.

Update- I don't know which brand gauges I have, but I'll try the VDO option just in case.

[bmdubya1198]

I ran through ELMBasic. I got "OK"s on all of the first section with the exception of the one or two that said the version of the adapter (v1.5) or whatever other information. Anyway, that all checked out.
I am going to post all of the responses I got from the commands while the ignition was ON in position II.

ATSI- BUS INIT:... OK

ATSH 83 51 13- OK
AE01- 86 13 51 EE 01 02 0C 06 ED

B903- 85 13 51 F9 03 AB 42 D2
ATPC- OK
ATRV 12.2v

ATIIA 6E- OK
ATWM 82 6E 13 A1- OK
ATSH 83 6E 13- OK
AE01- BUS INIT:... ERROR

ATPC- OK
ATIIA 2E- OK
ATWM 82 2E 13 A1- OK
ATSH 83 2E 13- OK
AE01- BUS INIT:... OK 83 13 2E EE 01 B3

ATZ- ELM327 v1.5
ATL1- OK
ATE1- OK
ATH1- OK
0100- BUS INIT:... OK 48 6 17 41 00 BE 1F F8 10 F0

0101- 48 6B 17 01 01 07 6D 6D EE
03- 48 6B 17 43 16 18 00 00 00 00 3B
07- 48 6B 17 47 00 00 00 00 00 00 11
0105- 48 6B 17 41 05 46 56
010C- 48 6B 17 41 0C 00 00 17
ATZ- ELM327 v1.5

[bmdubya1198]

I don't understand volvo850diag, so I can't scan with that today. The instructions don't make any sense to me at all. I can't figure out where I need to change the ELM327 bluetooth scanner or the COM port it's on.

[esl_97_850_T5]

bmdubya1198,

1. There's several useful pieces of info in your several posts on 2015-11-01.

1a. You've got a solid battery.

1b. You seem to definitely have an ELM327 device which *is* functionally equivalent to an ELM327 v1.4 (or higher). That's very good to know.

1c. The Vol-FCR interpretation of EFI-335 -- "Wiring fault between AW 50/42 and Motronic 4.4" -- is much more specific than the Brick-Diag Free v0.0.6.6 interpretation (Request for MIL lighting from TCM) or the Torque interpretation of the OBDII P1618 code (Powertrain). [I'll update the kwpd3b0_interpreter's interpretation of ECU 7A DTC A4 to reflect the more explicit Vol-FCR interpretation and the existence of P1618, using wording similar to that of ECU 11 DTC 30.]

English translation of http://www.volvopedia.de/index.php?title=EFI-335 (best viewed with Google Chrome with automatic translation turned on) seems to suggest M44 and AW 50/42 are not talking properly or are not talking at all. That agrees with what Vol-FCR says.

You should assume it could be any sort of wiring problem -- an open in one or more signal lines, a short to supply or a short to ground in any line. Also, remember it could be one of the other probable causes listed at the volvopedia.de page: terminal contact resistance, M44 defective, AW 50-42 defective.

1d. You connected to the COMBI. Super.

COMBI (ECU 51) has 3 DTCs -- all 3 of which could indicate wiring problems, **if** they are fresh DTCs. But at least you know you can talk to ECU 51.

If the ECU 51 DTC 0C, ie, 1-2-4 RPM Sensor Signal
and the ECU 51 DTC 06, ie, 1-2-1 Engine coolant temperature signal
persist after you clear the COMBI DTCs,
then it almost certainly means that you have a wiring fault **also** between COMBI and Motronic 4.4.

[By the way, turning off realtime virus protection was intended to free up CPU time, not RAM.]

1e. Your car is the first '96-'98 850/S70/V70/XC70 I've seen that (if it had more than 1 OBDII PID) did not have 13, 14, 19, or 20 PIDs. Your car has 17 OBDII PIDs (as evidenced by the 0100 request's 4100 response that specified the PID #s and did have a valid checksum). Interesting. Your car is missing PIDs 1D, 1E, 20, which are sometimes seen on Motronic 4.4 cars.

OBDII 011D identifies which O2 sensors are present.
OBDII 011E is the Power Take Off (PTO) Status.
OBDII 0120 just says there are no more OBDII PIDs.

1f. Your car is the very first '96-'98 850/S70/V70/XC70 I've seen that did *not* have DTC 14 for ECU 2E, ie, "PSL-424 -- Control Panel Not Connected [ignore since always set]".

2. So the name of the game is not just "find the broken wire", but:

2a) "find the source of the communication failure between the AW 50/42 and the M44", and
2b) if the COMBI DTCs 0C and 06 persist after clearing, "find the source of the communication failure between the COMBI and the M44".

If you hit a dead end while searching for one, switch to searching for the other. Maybe they are both manifestations of the same problem.

As far as your highly pertinent request -- "I'd like some insight as to whether this is on the actual "plugs" for the ECU and TCU or it's the bundle of wires I've been messing with that run out from the front of the ECU box." -- I think you are on your own. Seems to me it could be either.

Another thing I accidentily happened upon today while exploring the proper volvopedia.de link: http://www.volvopedia.de/index.php?title=Motronic_4.4 [again, that's best viewed in Google Chrome with automatic translation turned on]. That might help in debugging.

If I were you, I'd first do item 4 below, isolate if you have persistent COMBI DTCs or not. If you have persistent COMBI DTCs CI-124 and CI-121, then I'd try to locate something which is common between:

a) the signal wires between COMBI and M44 for the RPM and the Engine Coolant, and
b) the serial wires for AW 50/42 communication with M44.

If nothing is common there, then the obvious commonality is the M44 itself or the cradle it is seated in or grounds which all of them use together, or something like that.

If I didn't make headway that way, I'd tackle them one at a time, starting with the easiest to "get to".

3. The fact that Brick-Diag Free did not connect to ABS makes me think that you might have disconnected the ABS connector sometime after you read the ABS DTCs with Vol-FCR. Is that true? If so, you might not have reseated the ABS connector fully. If you back the car up in the driveway suddenly so it reaches 5-10 mpg, does the speedometer cable move? Or if you go driving for a block or two, does the speedometer cable move? If not, that probably explains the ECU 51 DTC 02, ie, 2-2-1 Speed Signal. Just reseat the ABS connector fully.

Can you still read ABS DTCs with Vol-FCR? If yes, then I'd start by assuming the ABS connector is seated OK, then proceed to try clearing the COMBI DTCs with ElmBasic.

4. Since you have 3 COMBI DTCs, you'll likely have 3 COMBI freeze frames for those DTCs. To see those freeze frames, issue the following to ElmBasic with the ignition at pos II:

Code: Select all

ATZ
ATL1
ATE1
ATI
ATSP 3
ATDP
ATH1
ATAL
ATKW0
ATTA 13
ATRA 13
ATIIA 51
ATWM 82 51 13 A1
ATSH 83 51 13
AE01
ATSH 84 51 13
AD0200
AD0C00
AD0600

The freeze frames might identify when the DTCs occurred, if any or all of the ECU 51 DTCs occurred simultaneous with the wreck, or if they've manifested or re-manifested recently.

Record the message exchange from the ATSH 83 51 13 thru the AD0600 and post back here.

[FWIW, I wouldn't be surprised if you actually **did** clear those DTCs when you tried to with Brick-Diag Free. I've never seen Brick-Diag Free fail to clear DTCs. It's true the DTCs might immediately return. But that doesn't mean they didn't necessarily get cleared. The key is: Did you receive an EF01 positive ack or not? Since you can't see that EF01 ack with either Vol-FCR or Brick-Diag Free (unless you're monitoring them on a 2nd line), the next best thing is... When you read the DTCs again with AE01 have they disappeared? In your case, Brick-Diag Free displayed the code -27FAF223819EC68. I don't recall seeing that code before. So maybe Brick-Diag Free actually did not successfully clear the codes.]

To clear the COMBI codes with ElmBasic, issue the following with ignition as pos II (assuming you have already just issued the list displayed 3-4 paragraphs ago, starting with the ATZ and ending with the AD0600):

ATSH 83 51 13
AE01

Wait a few seconds. There should be at least one response. Then issue:

AF01

Wait a few seconds. There may be one or more responses. Then issue:

AE01

Record the message exchange from the ATSH 83 51 13 thru the response to the 2nd AE01 and post back here.

5. There was good info in your manual typing of what you saw on the ElmBasic screen. Of course, it doesn't look like any ElmBasic screen that I've seen. You seem to have formatted it in a way which is convenient for you to look at (and for us to see in the thread). However, nothing from that format is interpretable by kwpd3b0_interpreter.

Below, I'll show you 2 different formats that will work for kwpd3b0_interpreter.html interpretation of your https://www.matthewsvolvosite.com/forums ... 83#p383583 post's data:

5a. Something close to the standard ELM327 format [where requests and responses are on separate lines and the '>' prompt is included, but where I've eliminated some blank lines and grouped sections like you did]:

Code: Select all

>ATSI
BUS INIT: ...OK

>ATSH 83 51 13
OK
>AE01
86 13 51 EE 01 02 0C 06 ED 

>B903
85 13 51 F9 03 AB 42 D2 
>ATPC
OK
>ATRV
12.2V

>ATIIA 6E
OK
>ATWM 82 6E 13 A1
OK
>ATSH 83 6E 13
OK
>AE01
BUS INIT: ...ERROR

>ATPC
OK
>ATIIA 2E
OK
>ATWM 82 2E 13 A1
OK
>ATSH 83 2E 13
OK
>AE01
BUS INIT: ...OK
83 13 2E EE 01 B3 

>ATZ
ELM327 v1.5
>ATL1
OK
>ATE1
OK
>ATH1
OK
>0100
BUS INIT: ...OK
48 6B 17 41 00 BE 1F F8 10 F0 

>0101
48 6B 17 01 01 07 6D 6D EE 
>03
48 6B 17 43 16 18 00 00 00 00 3B 
>07
48 6B 17 47 00 00 00 00 00 00 11 
>0105
48 6B 17 41 05 46 56 
>010C
48 6B 17 41 0C 00 00 17 
>ATZ
ELM327 v1.5

gets interpreted as:

Code: Select all

>AE01
86 13 51 EE 01 02 0C 06 ED 
 ------ ECU 51 has 3 DTCs: 02 0C 06
 ------ ECU 51 DTC #1: 02 -> CI-221 -- Vehicle Speed Signal missing [usually due to bad ABS module solders] [P0500].
 ------ ECU 51 DTC #2: 0C -> CI-124 -- Engine RPM signal faulty.
 ------ ECU 51 DTC #3: 06 -> CI-121 -- Engine Coolant Temperature signal faulty [see "http://www.volvopedia.de/index.php?title=CI-121", translate to your language, then see "http://www.volvotips.com/index.php/850-2/volvo-850-s70-v70-c70-service-repair-manual/volvo-850-instrument-panel-service-repair-manual/"].

>B903
85 13 51 F9 03 AB 42 D2 
 ------ Vehicle Mileage..........................170670 miles or km

>AE01
BUS INIT: ...OK
83 13 2E EE 01 B3 
 ------ ECU 2E has 0 DTCs.

>ATZ
ELM327 v1.5

>0100
BUS INIT: ...OK
48 6B 17 41 00 BE 1F F8 10 F0 
 ------ OBDII Emission PIDs Supported by ECU 17 (engine): 17 PIDs supported: 01,03,04,05,06,07,0C,0D,0E,0F,10,11,12,13,14,15,1C.

>03
48 6B 17 43 16 18 00 00 00 00 3B 
 ------ OBDII Emission DTCs...................... P1618

>07
48 6B 17 47 00 00 00 00 00 00 11 
 ------ OBDII Emission Pending DTCs.............. None

>0105
48 6B 17 41 05 46 56 
 ------ Coolant Temp (from 0105).................    30 C =  86 F

>010C
48 6B 17 41 0C 00 00 17 
 ------ Engine RPM (from 010C)...................     0 rpm = Engine RPM

>ATZ
ELM327 v1.5

5b. The OBDwiz / TouchScan Raw Data log format (as best I can remember):

Code: Select all

ATSI: [BUS INIT: ...OK]

ATSH 83 51 13: [OK]
AE01: [86 13 51 EE 01 02 0C 06 ED ]

B903: [85 13 51 F9 03 AB 42 D2 ]
ATPC: [OK]
ATRV: [12.2V]

ATIIA 6E: [OK]
ATWM 82 6E 13 A1: [OK]
ATSH 83 6E 13: [OK]
AE01: [BUS INIT: ...ERROR]

ATPC: [OK]
ATIIA 2E: [OK]
ATWM 82 2E 13 A1: [OK]
ATSH 83 2E 13: [OK]
AE01: [BUS INIT: ...OK
83 13 2E EE 01 B3 ]

ATZ: [ELM327 v1.5]
ATL1: [OK]
ATE1: [OK]
ATH1: [OK]
0100: [BUS INIT: ...OK
48 68 17 41 00 BE 1F F8 10 F0]

0101: [48 6B 17 01 01 07 6D 6D EE ]
03: [48 6B 17 43 16 18 00 00 00 00 3B ]
07: [48 6B 17 47 00 00 00 00 00 00 11 ]
0105: [48 6B 17 41 05 46 56 ]
010C: [48 6B 17 41 0C 00 00 17 ]
ATZ: [ELM327 v1.5]

gets interpreted as:

Code: Select all

AE01: [86 13 51 EE 01 02 0C 06 ED ]
 ------ ECU 51 has 3 DTCs: 02 0C 06
 ------ ECU 51 DTC #1: 02 -> CI-221 -- Vehicle Speed Signal missing [usually due to bad ABS module solders] [P0500].
 ------ ECU 51 DTC #2: 0C -> CI-124 -- Engine RPM signal faulty.
 ------ ECU 51 DTC #3: 06 -> CI-121 -- Engine Coolant Temperature signal faulty [see "http://www.volvopedia.de/index.php?title=CI-121", translate to your language, then see "http://www.volvotips.com/index.php/850-2/volvo-850-s70-v70-c70-service-repair-manual/volvo-850-instrument-panel-service-repair-manual/"].

B903: [85 13 51 F9 03 AB 42 D2 ]
 ------ Vehicle Mileage..........................170670 miles or km

ATRV: [12.2V]

AE01: [BUS INIT: ...OK
83 13 2E EE 01 B3 ]
 ------ ECU 2E has 0 DTCs.

0100: [BUS INIT: ...OK
48 6B 17 41 00 BE 1F F8 10 F0 ]
 ------ OBDII Emission PIDs Supported by ECU 17 (engine): 17 PIDs supported: 01,03,04,05,06,07,0C,0D,0E,0F,10,11,12,13,14,15,1C.

03: [48 6B 17 43 16 18 00 00 00 00 3B ]
 ------ OBDII Emission DTCs...................... P1618

07: [48 6B 17 47 00 00 00 00 00 00 11 ]
 ------ OBDII Emission Pending DTCs.............. None

0105: [48 6B 17 41 05 46 56 ]
 ------ Coolant Temp (from 0105).................    30 C =  86 F

010C: [48 6B 17 41 0C 00 00 17 ]
 ------ Engine RPM (from 010C)...................     0 rpm = Engine RPM

6. I forget. Did you say your Windows computer can use Bluetooth? And what version of Windows does it use? Do you have any idea what COM port # corresponds to your Bluetooth ELM327 device? For example, if you run STNterm, what COM port #s appear in its list?

The directions to get volvo850diag going with your Bluetooth will depend somewhat on those 2 answers.

esl_97_850_T5

[bmdubya1198]

bmdubya1198,

1. There's several useful pieces of info in your several posts on 2015-11-01.

1a. You've got a solid battery.

1b. You seem to definitely have an ELM327 device which *is* functionally equivalent to an ELM327 v1.4 (or higher). That's very good to know.

1c. The Vol-FCR interpretation of EFI-335 -- "Wiring fault between AW 50/42 and Motronic 4.4" -- is much more specific than the Brick-Diag Free v0.0.6.6 interpretation (Request for MIL lighting from TCM) or the Torque interpretation of the OBDII P1618 code (Powertrain). [I'll update the kwpd3b0_interpreter's interpretation of ECU 7A DTC A4 to reflect the more explicit Vol-FCR interpretation and the existence of P1618, using wording similar to that of ECU 11 DTC 30.]

English translation of http://www.volvopedia.de/index.php?title=EFI-335 (best viewed with Google Chrome with automatic translation turned on) seems to suggest M44 and AW 50/42 are not talking properly or are not talking at all. That agrees with what Vol-FCR says.

You should assume it could be any sort of wiring problem -- an open in one or more signal lines, a short to supply or a short to ground in any line. Also, remember it could be one of the other probable causes listed at the volvopedia.de page: terminal contact resistance, M44 defective, AW 50-42 defective.

1d. You connected to the COMBI. Super.

COMBI (ECU 51) has 3 DTCs -- all 3 of which could indicate wiring problems, **if** they are fresh DTCs. But at least you know you can talk to ECU 51.

If the ECU 51 DTC 0C, ie, 1-2-4 RPM Sensor Signal
and the ECU 51 DTC 06, ie, 1-2-1 Engine coolant temperature signal
persist after you clear the COMBI DTCs,
then it almost certainly means that you have a wiring fault **also** between COMBI and Motronic 4.4.

[By the way, turning off realtime virus protection was intended to free up CPU time, not RAM.]

1e. Your car is the first '96-'98 850/S70/V70/XC70 I've seen that (if it had more than 1 OBDII PID) did not have 13, 14, 19, or 20 PIDs. Your car has 17 OBDII PIDs (as evidenced by the 0100 request's 4100 response that specified the PID #s and did have a valid checksum). Interesting. Your car is missing PIDs 1D, 1E, 20, which are sometimes seen on Motronic 4.4 cars.

OBDII 011D identifies which O2 sensors are present.
OBDII 011E is the Power Take Off (PTO) Status.
OBDII 0120 just says there are no more OBDII PIDs.

1f. Your car is the very first '96-'98 850/S70/V70/XC70 I've seen that did *not* have DTC 14 for ECU 2E, ie, "PSL-424 -- Control Panel Not Connected [ignore since always set]".

2. So the name of the game is not just "find the broken wire", but:

2a) "find the source of the communication failure between the AW 50/42 and the M44", and
2b) if the COMBI DTCs 0C and 06 persist after clearing, "find the source of the communication failure between the COMBI and the M44".

If you hit a dead end while searching for one, switch to searching for the other. Maybe they are both manifestations of the same problem.

As far as your highly pertinent request -- "I'd like some insight as to whether this is on the actual "plugs" for the ECU and TCU or it's the bundle of wires I've been messing with that run out from the front of the ECU box." -- I think you are on your own. Seems to me it could be either.

Another thing I accidentily happened upon today while exploring the proper volvopedia.de link: http://www.volvopedia.de/index.php?title=Motronic_4.4 [again, that's best viewed in Google Chrome with automatic translation turned on]. That might help in debugging.

If I were you, I'd first do item 4 below, isolate if you have persistent COMBI DTCs or not. If you have persistent COMBI DTCs CI-124 and CI-121, then I'd try to locate something which is common between:

a) the signal wires between COMBI and M44 for the RPM and the Engine Coolant, and
b) the serial wires for AW 50/42 communication with M44.

If nothing is common there, then the obvious commonality is the M44 itself or the cradle it is seated in or grounds which all of them use together, or something like that.

If I didn't make headway that way, I'd tackle them one at a time, starting with the easiest to "get to".

3. The fact that Brick-Diag Free did not connect to ABS makes me think that you might have disconnected the ABS connector sometime after you read the ABS DTCs with Vol-FCR. Is that true? If so, you might not have reseated the ABS connector fully. If you back the car up in the driveway suddenly so it reaches 5-10 mpg, does the speedometer cable move? Or if you go driving for a block or two, does the speedometer cable move? If not, that probably explains the ECU 51 DTC 02, ie, 2-2-1 Speed Signal. Just reseat the ABS connector fully.

Can you still read ABS DTCs with Vol-FCR? If yes, then I'd start by assuming the ABS connector is seated OK, then proceed to try clearing the COMBI DTCs with ElmBasic.

4. Since you have 3 COMBI DTCs, you'll likely have 3 COMBI freeze frames for those DTCs. To see those freeze frames, issue the following to ElmBasic with the ignition at pos II:

Code: Select all

ATZ
ATL1
ATE1
ATI
ATSP 3
ATDP
ATH1
ATAL
ATKW0
ATTA 13
ATRA 13
ATIIA 51
ATWM 82 51 13 A1
ATSH 83 51 13
AE01
ATSH 84 51 13
AD0200
AD0C00
AD0600

The freeze frames might identify when the DTCs occurred, if any or all of the ECU 51 DTCs occurred simultaneous with the wreck, or if they've manifested or re-manifested recently.

Record the message exchange from the ATSH 83 51 13 thru the AD0600 and post back here.

[FWIW, I wouldn't be surprised if you actually **did** clear those DTCs when you tried to with Brick-Diag Free. I've never seen Brick-Diag Free fail to clear DTCs. It's true the DTCs might immediately return. But that doesn't mean they didn't necessarily get cleared. The key is: Did you receive an EF01 positive ack or not? Since you can't see that EF01 ack with either Vol-FCR or Brick-Diag Free (unless you're monitoring them on a 2nd line), the next best thing is... When you read the DTCs again with AE01 have they disappeared? In your case, Brick-Diag Free displayed the code -27FAF223819EC68. I don't recall seeing that code before. So maybe Brick-Diag Free actually did not successfully clear the codes.]

To clear the COMBI codes with ElmBasic, issue the following with ignition as pos II (assuming you have already just issued the list displayed 3-4 paragraphs ago, starting with the ATZ and ending with the AD0600):

ATSH 83 51 13
AE01

Wait a few seconds. There should be at least one response. Then issue:

AF01

Wait a few seconds. There may be one or more responses. Then issue:

AE01

Record the message exchange from the ATSH 83 51 13 thru the response to the 2nd AE01 and post back here.

5. There was good info in your manual typing of what you saw on the ElmBasic screen. Of course, it doesn't look like any ElmBasic screen that I've seen. You seem to have formatted it in a way which is convenient for you to look at (and for us to see in the thread). However, nothing from that format is interpretable by kwpd3b0_interpreter.

Below, I'll show you 2 different formats that will work for kwpd3b0_interpreter.html interpretation of your https://www.matthewsvolvosite.com/forums ... 83#p383583 post's data:

5a. Something close to the standard ELM327 format [where requests and responses are on separate lines and the '>' prompt is included, but where I've eliminated some blank lines and grouped sections like you did]:

Code: Select all

>ATSI
BUS INIT: ...OK

>ATSH 83 51 13
OK
>AE01
86 13 51 EE 01 02 0C 06 ED 

>B903
85 13 51 F9 03 AB 42 D2 
>ATPC
OK
>ATRV
12.2V

>ATIIA 6E
OK
>ATWM 82 6E 13 A1
OK
>ATSH 83 6E 13
OK
>AE01
BUS INIT: ...ERROR

>ATPC
OK
>ATIIA 2E
OK
>ATWM 82 2E 13 A1
OK
>ATSH 83 2E 13
OK
>AE01
BUS INIT: ...OK
83 13 2E EE 01 B3 

>ATZ
ELM327 v1.5
>ATL1
OK
>ATE1
OK
>ATH1
OK
>0100
BUS INIT: ...OK
48 6B 17 41 00 BE 1F F8 10 F0 

>0101
48 6B 17 01 01 07 6D 6D EE 
>03
48 6B 17 43 16 18 00 00 00 00 3B 
>07
48 6B 17 47 00 00 00 00 00 00 11 
>0105
48 6B 17 41 05 46 56 
>010C
48 6B 17 41 0C 00 00 17 
>ATZ
ELM327 v1.5

gets interpreted as:

Code: Select all

>AE01
86 13 51 EE 01 02 0C 06 ED 
 ------ ECU 51 has 3 DTCs: 02 0C 06
 ------ ECU 51 DTC #1: 02 -> CI-221 -- Vehicle Speed Signal missing [usually due to bad ABS module solders] [P0500].
 ------ ECU 51 DTC #2: 0C -> CI-124 -- Engine RPM signal faulty.
 ------ ECU 51 DTC #3: 06 -> CI-121 -- Engine Coolant Temperature signal faulty [see "http://www.volvopedia.de/index.php?title=CI-121", translate to your language, then see "http://www.volvotips.com/index.php/850-2/volvo-850-s70-v70-c70-service-repair-manual/volvo-850-instrument-panel-service-repair-manual/"].

>B903
85 13 51 F9 03 AB 42 D2 
 ------ Vehicle Mileage..........................170670 miles or km

>AE01
BUS INIT: ...OK
83 13 2E EE 01 B3 
 ------ ECU 2E has 0 DTCs.

>ATZ
ELM327 v1.5

>0100
BUS INIT: ...OK
48 6B 17 41 00 BE 1F F8 10 F0 
 ------ OBDII Emission PIDs Supported by ECU 17 (engine): 17 PIDs supported: 01,03,04,05,06,07,0C,0D,0E,0F,10,11,12,13,14,15,1C.

>03
48 6B 17 43 16 18 00 00 00 00 3B 
 ------ OBDII Emission DTCs...................... P1618

>07
48 6B 17 47 00 00 00 00 00 00 11 
 ------ OBDII Emission Pending DTCs.............. None

>0105
48 6B 17 41 05 46 56 
 ------ Coolant Temp (from 0105).................    30 C =  86 F

>010C
48 6B 17 41 0C 00 00 17 
 ------ Engine RPM (from 010C)...................     0 rpm = Engine RPM

>ATZ
ELM327 v1.5

5b. The OBDwiz / TouchScan Raw Data log format (as best I can remember):

Code: Select all

ATSI: [BUS INIT: ...OK]

ATSH 83 51 13: [OK]
AE01: [86 13 51 EE 01 02 0C 06 ED ]

B903: [85 13 51 F9 03 AB 42 D2 ]
ATPC: [OK]
ATRV: [12.2V]

ATIIA 6E: [OK]
ATWM 82 6E 13 A1: [OK]
ATSH 83 6E 13: [OK]
AE01: [BUS INIT: ...ERROR]

ATPC: [OK]
ATIIA 2E: [OK]
ATWM 82 2E 13 A1: [OK]
ATSH 83 2E 13: [OK]
AE01: [BUS INIT: ...OK
83 13 2E EE 01 B3 ]

ATZ: [ELM327 v1.5]
ATL1: [OK]
ATE1: [OK]
ATH1: [OK]
0100: [BUS INIT: ...OK
48 68 17 41 00 BE 1F F8 10 F0]

0101: [48 6B 17 01 01 07 6D 6D EE ]
03: [48 6B 17 43 16 18 00 00 00 00 3B ]
07: [48 6B 17 47 00 00 00 00 00 00 11 ]
0105: [48 6B 17 41 05 46 56 ]
010C: [48 6B 17 41 0C 00 00 17 ]
ATZ: [ELM327 v1.5]

gets interpreted as:

Code: Select all

AE01: [86 13 51 EE 01 02 0C 06 ED ]
 ------ ECU 51 has 3 DTCs: 02 0C 06
 ------ ECU 51 DTC #1: 02 -> CI-221 -- Vehicle Speed Signal missing [usually due to bad ABS module solders] [P0500].
 ------ ECU 51 DTC #2: 0C -> CI-124 -- Engine RPM signal faulty.
 ------ ECU 51 DTC #3: 06 -> CI-121 -- Engine Coolant Temperature signal faulty [see "http://www.volvopedia.de/index.php?title=CI-121", translate to your language, then see "http://www.volvotips.com/index.php/850-2/volvo-850-s70-v70-c70-service-repair-manual/volvo-850-instrument-panel-service-repair-manual/"].

B903: [85 13 51 F9 03 AB 42 D2 ]
 ------ Vehicle Mileage..........................170670 miles or km

ATRV: [12.2V]

AE01: [BUS INIT: ...OK
83 13 2E EE 01 B3 ]
 ------ ECU 2E has 0 DTCs.

0100: [BUS INIT: ...OK
48 6B 17 41 00 BE 1F F8 10 F0 ]
 ------ OBDII Emission PIDs Supported by ECU 17 (engine): 17 PIDs supported: 01,03,04,05,06,07,0C,0D,0E,0F,10,11,12,13,14,15,1C.

03: [48 6B 17 43 16 18 00 00 00 00 3B ]
 ------ OBDII Emission DTCs...................... P1618

07: [48 6B 17 47 00 00 00 00 00 00 11 ]
 ------ OBDII Emission Pending DTCs.............. None

0105: [48 6B 17 41 05 46 56 ]
 ------ Coolant Temp (from 0105).................    30 C =  86 F

010C: [48 6B 17 41 0C 00 00 17 ]
 ------ Engine RPM (from 010C)...................     0 rpm = Engine RPM

6. I forget. Did you say your Windows computer can use Bluetooth? And what version of Windows does it use? Do you have any idea what COM port # corresponds to your Bluetooth ELM327 device? For example, if you run STNterm, what COM port #s appear in its list?

The directions to get volvo850diag going with your Bluetooth will depend somewhat on those 2 answers.

esl_97_850_T5

Yes, I changed the format of the ELM 327 codes because I had just hand written everything. That is the information that I provided that you put in the interpreter? Why would it show 170,670 miles? According to the odometer, my car has 169,681 miles.
I tried VOL-FCR right after BrickDiag failed to access the module, and I could still access the ABS codes (still, none were present). I can check again, but the speedometer DOES work, last I checked, which was before doing any of this diagnostic work.
My Windows 10 laptop does have bluetooth capabilities via USB bluetooth adapter. The ELM327 was on COM4, but I removed it when I was messing around with it. I will put it back onto that COM port.

[bmdubya1198]

Went through your newest list of ELM327 codes. I'll post in the correct format this time

Code: Select all

>ATSH 83 51 13
OK
>AE01
BUS INIT: ...OK 86 13 51 EE01 02 0C 06 E0
>ATSM 84 51 13
OK
>AD0200
84 13 51 7E AD 23 36 91 13 51 ED 02 00 00 45 86 2D 2E E1 42 30 00 CD 03 A6 42 15 <DATA ERROR
>AD0C00
91 13 51 ED 0C 00 00 FF 88 1A 1B EA 4E 00 00 D0 03 AA 42 41
>AD0600
91 13 51 ED 06 00 00 00 00 FF 00 00 00 00 00 00 00 00 00 E7

Part 1 Interpreted: (WOW! I never knew I could get all that information!) edit: (Although I don't think some [or most] of it is correct. Then again, I'm no expert on this stuff.)

Code: Select all

>AD0200
84 13 51 7E AD 23 36 91 13 51 ED 02 00 00 45 86 2D 2E E1 42 30 00 CD 03 A6 42 15 <DATA ERROR
 ------ ECU 51 request AD negative ack (7E AD 23): Request in progress.

>AD0C00
91 13 51 ED 0C 00 00 FF 88 1A 1B EA 4E 00 00 D0 03 AA 42 41
 ------ ECU 51 Freeze Frame for DTC 0C -> CI-124 -- Engine RPM signal faulty.
 ------ DTC 0C Still Exists......................    No
 ------ DTC 0C FF Vehicle Speed..................     0 km/h = 0 mph
 ------ DTC 0C FF Engine RPM.....................  8238 rpm
 ------ DTC 0C FF Coolant Temp...................    96 C = 205 F
 ------ DTC 0C FF Fuel Level (from AD0C slot 4)..  6.93 gal
 ------ DTC 0C FF Fuel Level (from AD0C slot 5)..  7.20 gal
 ------ DTC 0C FF COMBI Flags....................EA -> Unknown meaning.
          Please resubmit, describe the situation, list vehicle year/model,
          list any dash lights which were on (including at least CEL/MIL, ABS,
          Oil Pressure, Battery, Low Fuel, SERVICE, Fuel Pressure if exists,
          Temperature if exists), and explain what you think these flags mean.
          The present understanding of these flags is:
              bit 0 = 0 = D+ alternator voltage faulty, ie, Battery light on.
              bit 1 = 1 = ??Fuel Pressure faulty or Oil Pressure light on [S70/V70/C70/XC70]??.
              bit 2 = 0 = Low Fuel light off.
              bit 3 = 1 = SERVICE light on.
              bit 4 = 0 = Temperature OK [S70/V70/C70/XC70].
              bit 5 = 1 = 12-pulse output Speed Signal OK.
              bit 6 = 1 = 48-pulse output Speed Signal OK.
              bit 7 = 1 = ??Manipulation on (ie, Vehicle Speed Signal missing)??.
 ------ DTC 0C FF Ambient Temp...................    28 C =  82 F
 ------ DTC 0C FF Fuel Consump...................     0 mpg or L/100 km [match your fuel consumption?]
 ------ DTC 0C FF Unknown    (from AD0C slot 9)..00 -> 0
        >>> Please monitor Fuel Consump and AD0C slot 9, come to your own
        >>> conclusions, then let us know the likely interpretations.
 ------ DTC 0C FF Engine Hours...................   976 hours
 ------ DTC 0C FF Vehicle Mileage................170660 miles or km

>AD0600
91 13 51 ED 06 00 00 00 00 FF 00 00 00 00 00 00 00 00 00 E7
 ------ ECU 51 Freeze Frame for DTC 06 -> CI-121 -- Engine Coolant Temperature signal faulty [see "http://www.volvopedia.de/index.php?title=CI-121", translate to your language, then see "http://www.volvotips.com/index.php/850-2/volvo-850-s70-v70-c70-service-repair-manual/volvo-850-instrument-panel-service-repair-manual/"].
 ------ DTC 06 Still Exists......................    No
 ------ DTC 06 FF Vehicle Speed..................     0 km/h = 0 mph
 ------ DTC 06 FF Engine RPM.....................     0 rpm
 ------ DTC 06 FF Coolant Temp...................   -40 C = -40 F
 ------ DTC 06 FF Fuel Level (from AD06 slot 4)..  0.00 gal
 ------ DTC 06 FF Fuel Level (from AD06 slot 5)..  0.00 gal
 ------ DTC 06 FF COMBI Flags....................00 -> Unknown meaning.
          Please resubmit, describe the situation, list vehicle year/model,
          list any dash lights which were on (including at least CEL/MIL, ABS,
          Oil Pressure, Battery, Low Fuel, SERVICE, Fuel Pressure if exists,
          Temperature if exists), and explain what you think these flags mean.
          The present understanding of these flags is:
              bit 0 = 0 = D+ alternator voltage faulty, ie, Battery light on.
              bit 1 = 0 = ??Fuel Pressure and Oil Pressure OK [S70/V70/C70/XC70]??.
              bit 2 = 0 = Low Fuel light off.
              bit 3 = 0 = SERVICE light off.
              bit 4 = 0 = Temperature OK [S70/V70/C70/XC70].
              bit 5 = 0 = 12-pulse output Speed Signal faulty.
              bit 6 = 0 = 48-pulse output Speed Signal faulty.
              bit 7 = 0 = ??Manipulation off (ie, Vehicle Speed Signal OK)??.
 ------ DTC 06 FF Ambient Temp...................   -50 C = -58 F
 ------ DTC 06 FF Fuel Consump...................     0 mpg or L/100 km [match your fuel consumption?]
 ------ DTC 06 FF Unknown    (from AD06 slot 9)..00 -> 0
        >>> Please monitor Fuel Consump and AD06 slot 9, come to your own
        >>> conclusions, then let us know the likely interpretations.
 ------ DTC 06 FF Engine Hours...................     0 hours
 ------ DTC 06 FF Vehicle Mileage................     0 miles or km

 ------ ** Overall Conclusions follow: **
 ------ 1. Vehicle Year/Model = probably 1998 S70/V70/C70/XC70.

Then, here is the second part:

Code: Select all

>ATSM 83 51 13
OK
>AE01
86 13 51 EE 01 02 0C 06 ED
>AF01
84 13 51 7F AF 22 38
>AE01
86 13 51 EE 01 02 0C 06 ED

Interpreted second part:

Code: Select all

>AE01
86 13 51 EE 01 02 0C 06 ED
 ------ ECU 51 has 3 DTCs: 02 0C 06
 ------ ECU 51 DTC #1: 02 -> CI-221 -- Vehicle Speed Signal missing [usually due to bad ABS module solders] [P0500].
 ------ ECU 51 DTC #2: 0C -> CI-124 -- Engine RPM signal faulty.
 ------ ECU 51 DTC #3: 06 -> CI-121 -- Engine Coolant Temperature signal faulty [see "http://www.volvopedia.de/index.php?title=CI-121", translate to your language, then see "http://www.volvotips.com/index.php/850-2/volvo-850-s70-v70-c70-service-repair-manual/volvo-850-instrument-panel-service-repair-manual/"].

>AF01
84 13 51 7F AF 22 38
 ------ ECU 51 Clear DTCs request must be preceded by Read DTCs request.

>AE01
86 13 51 EE 01 02 0C 06 ED
 ------ ECU 51 has 3 DTCs: 02 0C 06
 ------ ECU 51 DTC #1: 02 -> CI-221 -- Vehicle Speed Signal missing [usually due to bad ABS module solders] [P0500].
 ------ ECU 51 DTC #2: 0C -> CI-124 -- Engine RPM signal faulty.
 ------ ECU 51 DTC #3: 06 -> CI-121 -- Engine Coolant Temperature signal faulty [see "http://www.volvopedia.de/index.php?title=CI-121", translate to your language, then see "http://www.volvotips.com/index.php/850-2/volvo-850-s70-v70-c70-service-repair-manual/volvo-850-instrument-panel-service-repair-manual/"].

[bmdubya1198]

esl, do you know if there is any way I can test the contacts in the ECU/TCU connections? And using a multimeter or a test lead? I'd like to be able test continuity of each contact to see if power is being transmitted, and if the wire is broken.

[esl_97_850_T5]

...do you know if there is any way I can test the contacts in the ECU/TCU connections? And using a multimeter or a test lead? I'd like to be able test continuity of each contact to see if power is being transmitted, and if the wire is broken.

bmdubya1198,

1. First of all, thanks for the details on your two posts on 2015-11-02.

I've been lazy about finishing my response to those. I was going to send you a response via two posts:

1a) First, a summary post which basically was going to say all the detailed info supports the previously mentioned idea that you've got some sort of wiring / connectivity / power / grounding / corroded terminal contacts / failed ECM / or failed TCM problem, and that you're going to have to do the grunt work to figure it out or pay for someone else to figure it out. But it also supports my previous speculation that you might very well have a similar wiring / connectivity / power / grounding / corroded terminal contacts problem between the COMBI and the ECM. [That paragraph serves the purpose of the planned "summary" post.]

1b) Secondly, a very long, very detailed response to the really good data you provided. [I'll send the "details" post in the coming days -- even if you don't want me to -- because it'll have info useful to the community at large (eg, yours is the very first well documented case of "7F AF 22" after a Clear DTCs which was indeed preceded by Read DTCs as it should be). I've gotten side-tracked on some other issues recently, one of which is evaluation of the DVD mentioned below. Also, I want to make an enhancement to the interpreter before sending the "details" post.]

2. Now, on to your present "how to test ECM/TCM contacts continuity" question...

I have no experience in that arena. I've never removed my ECM or TCM. That being said, I do think it's very likely you can test the ECM/TCM contacts continuity. But I will not venture to say how. Someone else with repeated, successful experience doing so will have to answer your question.

I'd suggest you buy the OTP 850 Repair Manuals DVD that I reviewed at https://www.matthewsvolvosite.com/forums ... 31#p384772 recently. It has a wealth of info that a dealer / indie shop might use for diagnosing all sorts of problems. If I was in your situation, I'd spend $45 - $50 for the DVD. I don't think OTP has a DVD dedicated to the '98 S70/V70. But there's definitely manuals on the DVD which are explicitly for (only) '98 S70/V70. So I think that would be the DVD for your '98 V70. The DVD may answer your present question or it may give you some other ideas.

If you get the DVD, I'd suggest drilling down, finding, then opening "Engine Management system Motronic 4.4 850 (B5254T) 1997- (TP-2318201)". That one might be applicable to your car's M44. Keep in mind the European 1997 year is our 1998 year for these 850/S70/V70, and the DVD's contents were created most likely in Sweden.

Since the DVD's diagnostics will (to a large degree) revolve around the Volvo Scan Tool, which I doubt you'll be able to get your hands on, maybe you might want to pursue the following approach in addition to buying the DVD...

The other places that come to mind to look for details on testing the boards, the cage they are inserted in, the wiring on that cage, etc are the following sites (which you can find links to from volvo_850_diag_links.html or via a web search):

- M44 Wiki,
- volvospeed,
- the site that hosted MotronicSuite originally,
- the site that hosts Brick-Diag Free,
- a slew of other Volvo forums, especially those focused a lot on performance enhancements.

3. Since you've already done a bunch of wiring testing beforehand, and you've already seen the core info of what you can see via Vol-FCR and via the ELM327 / terminal emulator approach, and since you've gotten the same or similar results from swapping out an ECM, it seems the two most likely next steps are:

3a) swapping the TCM,

3b) testing precisely what you're asking about now.

Just be patient. Don't rashly connect equipment to sensitive computer electronics if you don't know what you're doing (electronically speaking).

I look forward to the eventual answers of both the M44 / AW 50-42 comm problem and the COMBI / M44 comm problem, regardless whether it's one single solution or two different solutions.

esl_97_850_T5

P.S. Some of your posts from prior to 2015-11-02 are one of the primary reasons I bought the OTP 850 Repair Manuals DVD.

[bmdubya1198]

I posted a thread on Volvospeed yesterday, and I heard back that it takes no more than a multimeter and a pin out diagram to check the continuity on the ECU. I will have to look into that DVD, because that might be where I need to get the diagram unless I come across one online.
I've already swapped out the TCM once, and that didn't do anything for me. Maybe it could make a difference now, but I'd obviously like to check out the wiring a little more before hand.
Don't worry, I don't plan on going nuts with the electronics. I like to be very careful with that stuff for the reason of risking causing damage to it.

[esl_97_850_T5]

I posted a thread on Volvospeed yesterday, and I heard back that it takes no more than a multimeter and a pin out diagram to check the continuity on the ECU. I will have to look into that DVD, because that might be where I need to get the diagram unless I come across one online.
I've already swapped out the TCM once, and that didn't do anything for me. Maybe it could make a difference now, but I'd obviously like to check out the wiring a little more before hand.
Don't worry, I don't plan on going nuts with the electronics. I like to be very careful with that stuff for the reason of risking causing damage to it.

bmdubya1198,

1. Great to hear that it takes no more than a multimeter and a pinout diagram to check the continuity on the M44.

There are 2 places where I know you can get M44 pinouts online. You need both of them. Both of them together will equal (and even exceed) what the "Breakout Box and Parameters" section shows in the M44 manuals on the OTP Volvo 850 DVD.

- Follow the Dilemma's "Volvo Motronic 4.4.pdf" link at jonesrh.info/volvo850/volvo_850_diag_link.html to get the Wayback Machine's save of this highly informative M44 document by Dilemma, author of MotronicSuite. It contains a pinout diagram along with English explanations of the pins which matches (almost exactly) the English explanations in the DVD's "Breakout Box and Parameters" section of M44 manuals (for the 10-20 lines that I checked). Plus, it includes an extra, useful wire Color column.

- The other table of M44 pinouts I've already mentioned in this thread -- volvopedia.de's http://www.volvopedia.de/index.php?title=Motronic_4.4 (which is best viewed in Google Chrome with automatic translation turned on). What's important about that table of M44 pinouts is that it includes the columns: Ignition On, Idling, and Remarks. Those same columns are on the DVD.

- The only things missing after "combining" the two tables by:

* opening them both up at the same,
* using the Pin Number column from Dilemma's table and the Terminal column from volvopedia.de's table to correlate the tables,
* using the Description column from Dilemma's table (rather than the Signal Type column from volvopedia.de's table in English), and
* using the Ignition ON, Neutral [really means "Idling"], and Remarks columns from volvopedia.de's table in English,

are the instructions that precede the A table and the instructions that precede the B table.

Basically the instructions for the A table say:

* All values in the A table are measured between the Pin Number / Terminal in the 1st column and terminal A42 (signal ground), unless otherwise indicated in parenthesis in the Description / Signal Type column.

* "NOTE! It is important to connect breakout box and check ground terminals according to EE. Breakout box and parameter tables page 222, before readings are taken". I'll leave it up to you to talk with your advisors at volvospeed if that is necessary or not.

* The A table's values apply with the engine unloaded at operating temp.

* The legend:
U = DC volts
Uac = AC volts
Ubat = battery voltage
Ulow = ~0V
t = time (ms)
f= frequency (Hz)
%duty = duty cycle (pulse ratio) as %

Basically the instructions for the B table are the same, except that:

* All values in the B table are measured between the Pin Number / Terminal in the 1st column and terminal B28 (signal ground), unless otherwise indicated in parenthesis in the Description / Signal Type column.

* The same "NOTE! It is important to connect breakout box and check ground terminals according to EE. Breakout box and parameter tables page 222, before readings are taken" applies to the T table. I'll leave it up to you to talk with your advisors at volvospeed if that is necessary or not.

2. I have NOT thoroughly checked that Dilemma's table merged with volvopedia.de's table is an exact merger of the A and B tables "Breakout Box and Parameters" section shown in the M44 manuals on the OTP Volvo 850 DVD.

Use the tables at your own risk.

3. The other thing you need is to see which pins on the ECM connect to which pins on the TCM. The easiest way to do that is to download the 1997 Volvo 850 Wiring Diagrams .pdf file, open it up in your .pdf reader, go to page 1 of 62, use that as your Table of Contents, find the appropriate Motronic 4.4 -- there's only 2 choices B5254S and B5254T, click one of them. If you click one that does not say "2:2" at the end, it'll be for the left-side, ie, for the A plug. If you click the one what says "2:2" at the end, it'll be for the right-side, ie, for the B plug. That's the one that shows how 4/28 (AW 50-42) is connected to 4/46 (Motronic 4.4).

4/28 B15 is the signal line to 4/46 B26.

According to the DVD, your P1618 is due to ECM detecting B26 signal as too high.

4. I was confused and thought you had swapped out the ECM instead of the TCM.

5. Can you post here the link to your thread at volvospeed?

6. I was in the middle of detailing the steps (as I understood them) that the DVD is saying need to be followed in debugging the EFI-335 P1618 problem. It'll take me up to a day to finish that. I'm simplifying in the process, since the DVD jumps around all over the place using common instructions which function (like subroutines or functions in a programming language). Plus sometimes you have to refer to previous years documents to get the details.

esl_97_850_T5