2001 v70 code p0500 and ABS light
2001 v70 code p0500 and ABS light
Hello, I am new here and cannot get my 2001 V70 inspected because the check engine light is on showing a p0500 code. I just ordered a tranny speed sensor for it and I'm hoping that will at least fix the p0500 code. How much should it cost to get the abs module repaired? Could they be related. Thanks again for any words or observations
I recently had an identical issue with my 2002 V70. The Check engine light was illuminated and the ABS failure lights were illuminated and and an ABS failure message was present in the message window. The "Blue Driver" OBDII scanner provided the p0500 code. Please note the standard OBDII scanners normally do not include what is termed the "enhanced" codes related to ABS and SRS codes that are available via the Volvo VIDA scanner system. Without access to the "enhanced" codes (only available via the Volvo scanning equipment or the bootlegged systems from China) you will not be able to determine what is triggering the ABS system.
Additionally, my experience as I delved into it, determined that the Volvo system illuminates the check engine light when there is a problem with the ABS system. Like you I could not pass the DMV emissions test with the check engine light illuminated. (As and FYI the technicians performing the DMV test informed me that the ABS light will not affect passing the test - but if the check engine light is also illuminated they cannot even begin the test.)
To eliminate the Brake Control Module (BCM) - Volvo's nomenclature for the ABS module from the issue I contacted XeMODeX in Canada (one of the sponsors for this site) and after supplying them the VIN # of the my vehicle I purchased a rebuilt module.
I also did some visual examination of each wheel sensor that supplies data to the BCM and discovered the Front Right sensor wiring was defective (torn or frayed). Therefore, I replaced this sensor.
At this time the ABS was still illuminated (and the check engine light still illuminated)
I then engaged the services of an independent shop (with lower costs than the Volvo Dealer) and using their Volvo VIDA OBDII equipment discovered a (speed) signal was not being received from the Right Front wheel sensor.
During this time the Service desk at XeMODeX was very helpful and supportive in talking through the diagnostic steps. When the VIDA equipment reported no signal, XeMODeX suggested that we swap the front left and right sensor inputs to the BCM. This swap was done at the location in the engine compartment where the individual front wheel sensor connectors are accessible and connect to the individual cables leading to the BCM connector. This was a major diagnostic key as the swap and the VIDA indicated the fault stayed with the RH sensor (it did not sway). Therefore, this key finding indicated a potential wiring issue in the front RH wiring to the BCM connector. Careful examination of the connector at the BCM by the Volvo independent shop revealed that one of the two female connectors associated with the RH sensor was slightly enlarged and not making good contact with the associated male pin on the BCM. This one female connection was tightened - the connections restored to normal - the VIDA reconnected - all failure codes reset - the vehicle was driven with VIDA connect and all test results were normal.
The check engine light was cleared and after several days of driving my Blue Driver scan tool indicate the vehicle was ready for the DMV emissions test (with one exception - the Evaporative System test was not complete). The Emissions test technician indicated this is quite common immediately following reset of the check engine light as the conditions to complete the test are difficult to achieve over a short period. Hence the DMV will commonly overlook this "completion" if all of the other tests are satisfactory.
Hence, I had success.
Summary, if I were to repeat this goal of extinguish the ABS light (to get the Volvo Check Engine light extinguished), I would either find an independent shop with Volvo VIDA scanning equipment and start from that point so as to determine exactly the extent of the failure. As an alternate purchase a scan tool that is capable of Volvo Enhanced codes (i.e, ABS, SRS etc.) - this is likely from a Chinese supplier.
A search on YouTube of replacing a Volvo wheel sensor will provide a great visual of "How to". Checking the XeMODeX web site will provide info on replacing a Volvo BCM.
A search of the various Volvo forums on this site provide a schematic of the BCM wiring between the wheel sensors - the connector - BCM.
Unfortunately, my discovery is that Volvo turns on the Check Engine light when an ABS fault is detected.
Good luck and persistence will win.
This forum was helpful for me as if you search
Additionally, my experience as I delved into it, determined that the Volvo system illuminates the check engine light when there is a problem with the ABS system. Like you I could not pass the DMV emissions test with the check engine light illuminated. (As and FYI the technicians performing the DMV test informed me that the ABS light will not affect passing the test - but if the check engine light is also illuminated they cannot even begin the test.)
To eliminate the Brake Control Module (BCM) - Volvo's nomenclature for the ABS module from the issue I contacted XeMODeX in Canada (one of the sponsors for this site) and after supplying them the VIN # of the my vehicle I purchased a rebuilt module.
I also did some visual examination of each wheel sensor that supplies data to the BCM and discovered the Front Right sensor wiring was defective (torn or frayed). Therefore, I replaced this sensor.
At this time the ABS was still illuminated (and the check engine light still illuminated)
I then engaged the services of an independent shop (with lower costs than the Volvo Dealer) and using their Volvo VIDA OBDII equipment discovered a (speed) signal was not being received from the Right Front wheel sensor.
During this time the Service desk at XeMODeX was very helpful and supportive in talking through the diagnostic steps. When the VIDA equipment reported no signal, XeMODeX suggested that we swap the front left and right sensor inputs to the BCM. This swap was done at the location in the engine compartment where the individual front wheel sensor connectors are accessible and connect to the individual cables leading to the BCM connector. This was a major diagnostic key as the swap and the VIDA indicated the fault stayed with the RH sensor (it did not sway). Therefore, this key finding indicated a potential wiring issue in the front RH wiring to the BCM connector. Careful examination of the connector at the BCM by the Volvo independent shop revealed that one of the two female connectors associated with the RH sensor was slightly enlarged and not making good contact with the associated male pin on the BCM. This one female connection was tightened - the connections restored to normal - the VIDA reconnected - all failure codes reset - the vehicle was driven with VIDA connect and all test results were normal.
The check engine light was cleared and after several days of driving my Blue Driver scan tool indicate the vehicle was ready for the DMV emissions test (with one exception - the Evaporative System test was not complete). The Emissions test technician indicated this is quite common immediately following reset of the check engine light as the conditions to complete the test are difficult to achieve over a short period. Hence the DMV will commonly overlook this "completion" if all of the other tests are satisfactory.
Hence, I had success.
Summary, if I were to repeat this goal of extinguish the ABS light (to get the Volvo Check Engine light extinguished), I would either find an independent shop with Volvo VIDA scanning equipment and start from that point so as to determine exactly the extent of the failure. As an alternate purchase a scan tool that is capable of Volvo Enhanced codes (i.e, ABS, SRS etc.) - this is likely from a Chinese supplier.
A search on YouTube of replacing a Volvo wheel sensor will provide a great visual of "How to". Checking the XeMODeX web site will provide info on replacing a Volvo BCM.
A search of the various Volvo forums on this site provide a schematic of the BCM wiring between the wheel sensors - the connector - BCM.
Unfortunately, my discovery is that Volvo turns on the Check Engine light when an ABS fault is detected.
Good luck and persistence will win.
This forum was helpful for me as if you search
-
- Similar Topics
- Replies
- Views
- Last post