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by FlipIt
04 Jul 2011, 06:24
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

I reinstalled the cruise control module and went for a short (5 mile) test drive. The cruise control worked fine at 35 mph and 45 mph which means the vehicle speed signal generated by the instrument cluster is adequate for the cruise control. Since I have verified continuity between the cruise contr...
by FlipIt
30 Jun 2011, 18:24
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

I have to admit that this VSS fault is starting to irritate me. I removed the radio and verified continuity of the vehicle speed signal path between the radio connector and the cruise control module connector. Then I slid under the dash to remove the speed warning relay. I had to remove another rela...
by FlipIt
28 Jun 2011, 15:39
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

I have confirmed that my wiring is basically the same as a 1995 model with minor exceptions (i.e. ABS). The ECM connector is the two part (A & B) used with the Motronic 4.3 multiport fuel injection. I haven't verified that the vehicle speed is generated by the ABS but I'm confident that it is si...
by FlipIt
25 Jun 2011, 18:54
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

Well, I wasted my money and time purchasing and installing a replacement VSS for my 1996. Since I could not find any continuity between the wires coming from the VSS and the bundle of wires under the airbag I again removed the TCM and ECM and housing. I found that the yellow/brown wire goes to pin 5...
by FlipIt
23 Jun 2011, 19:30
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

The 1995 wiring diagrams show the VSS outputs going to the instrument cluster pin A2 (green/yellow wire) and pin A3 (yellow/brown wire) with no vehicle speed output from the ABS. The 1996 wiring diagrams show the ABS vehicle speed output (another yellow/brown wire) going to the instrument cluster pi...
by FlipIt
22 Jun 2011, 12:45
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

I was wrong about the part number. I checked the number on the box and its 9168039, AT Speed Sensor, made in Italy. It looks identical to the one that's used for the engine speed sensor further forward and outboard on the transaxle. I believe I have identified the VSS on the 1996 wiring diagrams. It...
by FlipIt
21 Jun 2011, 20:09
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

The Scan-Tech PN is W0133-1841585. It may be the same as the OEM PN which I couldn't find on the unit. I downloaded a 1996 850 wiring diagram and have been searching thru it for the past couple of hours. So far I have not found the VSS on any of the pages. The ABS generates a speed signal that goes ...
by FlipIt
21 Jun 2011, 15:18
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Re: Vehicle Speed Sensor Malfunction P0500

Here's what my original and the replacement VSS looks like: W01331841585STP.jpg Did you have a flashing up arrow when the Check Engine light illuminated? I also drove the vehicle with the VSS disconnected and it didn't seem to make any difference. I placed the front end on jack stands and "drov...
by FlipIt
21 Jun 2011, 12:48
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Vehicle Speed Sensor Malfunction P0500
Replies: 12
Views: 15295

Vehicle Speed Sensor Malfunction P0500

My 1996 850 turbo wagon has a persistent Check Engine light due to a vehicle speed sensor malfunction (P0500). The speedometer works fine which I believe uses the anti-lock braking system for vehicle speed information. Since my wiring harnesses were in bad shape I traced the wires for continuity fro...
by FlipIt
04 Jun 2011, 11:59
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: 96 850 Turbo Wagon Mechanic's Challenge
Replies: 106
Views: 20256

Re: 96 850 Turbo Wagon Mechanic's Challenge

Next I used two part epoxy to glue the leather bulges to the plastic form as shown below. Glue2.jpg Glue1.jpg Even though I waited 24 hours before removing the clamps the glue did not hold to the rubber like substance that is bonded to the underside of the leather. Instead of trying a different glue...