Trouble DTCs library

[matthew1]

Reminder: please don't post to this thread unless it's about DTCs in general.

If your Volvo is throwing a code or ten, please create a new thread (topic).

[vince]

A huge thanks! That's the thread I was looking for!

[kelvin6]

I need to remind myself to write up the Electronic Climate Control codes. I didn't bother originally with it, because I have a manual climate control.

Hopefully I will write up that long list of codes.

[renns]

What a great resource! One question from a new Volvo owner. What is the button push sequence required to fetch these codes? Is the same method used for all modes?

[MadeInJapan]

Yes!

[renns]

I wanted a hard-copy of these, so I cut-n-pasted them into a 2-page pdf file. If others would find it useful, I can forward it for hosting. I tried attaching it to this message, but no go.

Roger.

[tailor]

B1 Electronic climate control

111 No fault
121 Outside temperature sensor shorted to ground
122 Outside temperature sensor open circuit or shorted to 12 volts
123 Driver's side interior temperature sensor shorted to ground
124 Driver's side interior temperature sensor open circuit or shorted to 12 volts
125 Passenger's side interior temperature sensor shorted to ground(earth)
126 Passenger's side interior temperature sensor open circuit or shorted to 12 volts
131 Driver's side air duct temperature sensor shorted to ground(earth)
132 Driver's side air duct temperature sensor open circuit or shorted to 12 volts
133 Passenger's side air duct temperature sensor shorted to ground(earth)
134 Passenger's side air duct temperature sensor open circuit or shorted to 12 volts
135 No signal from engine coolant temperature sensor
141 Faulty signal from driver's side temperature selector switch
143 Faulty signal from passenger's side temperature selector switch
145 Faulty signal from function selector switch
151 Signal from fan speed sensor missing or too high
152 Signal from fan speed sensor shorted to earth

211 Driver's side damper motor position sensor open circuit or shorted to 12 volts
212 Driver's side damper motor position sensor shorted to earth
221 Passenger's side damper motor position sensor open circuit or shorted to 12 volts
222 Passenger's side damper motor position sensor shorted to earth
231 Ventilation damper motor position sensor open circuit or shorted to 12 volts
232 Ventilation damper motor position sensor shorted to earth
233 Floor/defrost damper motor position sensor open circuit or shorted to 12 volts
234 Floor/defrost damper motor position sensor shorted to earth
235 Recirculation damper motor position sensor open circuit or shorted to 12 volts
236 Recirculation damper motor position sensor shorted to earth

311 Driver's side damper motor shorted to earth or shorted to 12 volts
312 Passenger's side damper motor shorted to earth or shorted to 12 volts
313 Ventilation damper motor shorted to earth or shorted to 12 volts
314 Floor/defrost damper motor shorted to earth or shorted to 12 volts
315 Recirculation damper motor shorted to earth or shorted to 12 volts
321 Driver's side damper motor active too long
322 Passenger's side damper motor active too long
323 Ventilation damper motor active too long
324 Floor/defrost damper motor active too long
325 Recirculation damper motor active too long

411 Blower fan seized or drawing excessive current
412 Driver's side interior temperature sensor inlet fan shorted to earth
413 No control voltage at driver's side interior temperature sensor inlet fan
414 Driver's side interior temperature sensor inlet fan seized
415 Passenger's side interior temperature sensor inlet fan shorted to earth
416 No control voltage at passenger's side interior temperature sensor inlet fan
417 Passenger's side interior temperature inlet fan seized
418 No control signal to blower fan power stage
419 Faulty diagnostic signal from blower fan power stage
420 ECU fault in program memory

511 Damper motor limit position self-adjustment not carried out




Merry Xmas, Happy Chanukah, Happy Kwanza

If anyone else has been left out sorry " Happy Holidays"




Tailor

[tailor]

I thought it would be nice to add the following to help further understand codes and the various fuel systems on these 850 's 1993 -1997.
I hope that I do not add to any confusion. I have listed each system's codes below. Some systems require you to pull codes from both the A2 and A6 sockets to get the full picture of fuel and ignition.

1)Motronic 4.3 used on Turbo 20 Valve engines as well as some B5254 S engines.
When checking codes on these engines information is "pulled" only from the A 2 module. There is a single ECU that controls both the fuel and ignition. The turbocharger boost pressure is also controlled by the Motronic ECU.

2) Motronic 4.4
Installed on 1996 and 1997 B5254 S engines and operates pretty much the same as Motronic 4.3

3)Fenix 5.2(A2 socket)
This will be found on the 10 valve non turbo vehicles. Similar to the LH2.3 Jetronic and also with a single ECU.
Fenix uses a MAP( Manifold absolute pressure) and intake air temperature sensor(located in the air intake duct) to calaculate the volume of air being drawn into the engine.The map is connected via a hose to the intake manifold where manifold pressure is converted to an electrical signal and sent to the ECU.

4)LH2.3 Jetronic similar to above system.


Fenix 5.2 System

111 No faults detected
112 ECU fault
113 Short term fuel mixture too weak
115 Faulty signal to no 1 cylinder injector
121 MAP sensor signal absent or faulty
122 Intake air temp sensor signal absent or faulty
123 Coolant temp signal absent or faulty
125 Faulty signal to no 2 cylinder Injector
132 Battery voltage too low or too high
135 Faulty signal to no 3 cylinder Injector
143 Front knock sensor signal absent or faulty
144 Load signal absent or faulty
145 Faulty signal to no 4 cylinder Injector
152 Air pump signal absent or faulty
154 EGR system leakage
155 Faulty signal to no 5 cylinder Injector

212 Heated oxygen sensor signal absent or faulty
214 RPM sensor signal absent
221 Long term fuel mixture too weak in part load stage
222 Main relay signal absent or faulty
223 Idle air control valve signal absent or faulty
225 A/C pressure sensor signal absent or faulty
231 Long term fuel mixture too rich in part load stage
232 Long term fuel mixture too weak at idle
233 Long term idle air trim outside control range
235 EGR controller signal absent or faulty
241 EGR system flow fault
243 Throttle position sensor signal outside voltage range
244 knock control at limit

311 Vehicle speed sensor signal absent(speedometer)
313 Evap valve signal absent or faulty
314 Camshaft position sensor signal absent or faulty
323 Malfunction indicator lamp signal faulty
325 Ecu memory loss
335 Request for malfunction indicator lamp from automatic transmission ECU
342 Air conditioning system relay control signal faulty
343 Fuel pump relay control signal faulty

411 Throttle postion sensor signal outside voltage range
413 EGR temp sensor signal absent or faulty
432 High temp in ECU module box
433 Rear knock sensor signal absent or faulty
435 Heated oxygen sensor slow response
442 Air pump relay signal absent or faulty

511 Long term fuel mixture too rich at idlel
512 Short term fuel mixture too rich
513 Excessively high temperature in ECU module box
514 Engine cooling fan faulty at half speed
515 Engine cooling fan faulty at full speed
521 Oxygen sensor heating faulty
523 Signal to ECU module box cooling fan shorted to 12 volts
524 Transmission torgue control signal faulty
535 Turbo regulator valve fault


Motronic 4.3

112 ECU fault
115 Faulty signal to no 1 cylinder injector
121 MAF sensor signal absent or faulty
123 Coolant temp signal absent or faulty
125 Faulty signal to no 2 cylinder Injector
131 Engine speed (RPM) sensor signal absent or faulty
132 Battery voltage too low or too high
135 Faulty signal to no 3 cylinder Injector
143 Front knock sensor signal absent or faulty
144 Load signal absent or faulty
145 Faulty signal to no 4 cylinder Injector
152 Air pump signal absent or faulty
154 EGR system leakage
155 Faulty signal to no 5 cylinder Injector

212 Heated oxygen sensor signal absent or faulty
214 RPM sensor signal absent
223 Idle air control valve siganal absent or faulty
225 A/C pressure sensor signal absent or faulty
231 Long term fuel mixture too rich in part load stage
232 Long term fuel mixture too weak at idle
233 Long term idle air trim outside control range
235 EGR controller signal absent or faulty
241 EGR system flow fault
243 Throttle position sensor signal outside voltage range
244 Knock control at limit
245 Idle air control valve closing signal absent or faulty

311 Vehicle speed sensor signal absent(speedometer)
313 Evap valve signal absent or faulty
314 Camshaft position sensor signal absent or faulty
315 Evap system fault
323 Malfunction indicator lamp signal faulty
325 Ecu memory loss
335 Request for malfunction indicator lamp from automatic transmission ECU
342 Air conditioning system relay control signal faulty
343 Fuel pump relay control signal faulty

411 Throttle postion sensor signal outside voltage range
413 EGR temp sensor signal absent or faulty
414 Turbo boost pressure too high
416 Turbo boost pressure reducsed by automatic transmission ECU
432 High temp in ECU module box
433 Rear knock sensor signal absent or faulty
435 Heated oxygen sensor slow response
442 Air pump relay signal absent or faulty

511 Long term fuel mixture too rich at idle
512 Short term fuel mixture too rich
513 Excessively high temperature in ECU module box
514 Engine cooling fan faulty at half speed
515 Engine cooling fan faulty at full speed
521 Oxygen sensor heating faulty
523 Signal to ECU module box cooling fan shorted to 12 volts
524 Transmission torgue control signal faulty
535 Turbo regulator valve fault
541 Evap fault

Jetronic LH3.2

111 No faults detected
112 ECU fault
113 Short term fuel mixture too weak
121 MAF sensor signal absent or faulty
123 Coolant temp signal absent or faulty
132 Battery voltage too low or too high

212 Heated oxygen sensor signal absent or faulty
221 Long term fuel mixture too weak in part load stage
223 Idle air control valve signal absent or faulty
231 Long term fuel mixture too rich in part load stage
232 Long term fuel mixture too weak at idle

311 Vehicle speed sensor signal absent(speedometer)

411 Throttle postion sensor signal absent

511 Long term fuel mixture too rich at idle
512 Short term fuel mixture too rich


Tailor

[MadeInJapan]

Thanks for the updated information. I might add that if someone is driving a first year S/V/XC/C 70 (1998), it has the Motronic 4.4 ECU as well.

In U.S.A. Model year 1999, a newer ECU (not listed here) began to be used.

[jtslay]

Oh my God!!! What a huge help, can't even begin to tell you how much you rock for this info..... thank you thank you thank you..... Jason