I recently bought a V70, 2.4 auto, 2000 facelift model. I bought it knowing there were issues, with all of the dash warning lights on and the abs cutting in occasionally at very low speeds when there is obviously no requirement for it. This morning I took it to a friends garage to have the fault codes read. There were many, as follows:
ENGINE CODES
ECM-510D vehicle speed signal
ECM-911A throttle unit communication, faulty signal
ECM-6400 camshaft reset valve
ECM-A02B communication, control module for abs
ECM-250A long term fuel trim
ABS CODES
ABS-0092 yaw rate sensor, faulty signal
ABS-0095 communication between control modules. communication problems with Active on demand coupling
ABS-0010 left front wheel sensor, signal missing
ABS-0011 left front wheel sensor, faulty signal
ABS-0021 right front wheel sensor, faulty signal
So, not knowing if any were historical concerns that hadn't been reset, we deleted all codes, then read them again to see if any popped up instantly. Nothing came back up immediately, and the plan is now to drive the car as normal for a day and read them again tomorrow. About a mile into the drive home all of the abs lights came back on. No engine light yet.
I was just wondering if any of you that are experienced in repairing these cars might have come across such a list of abs codes and have an idea of what the cause might actually be. I mean for example, I can see that front wheel sensors are both listed, but with the communication code, I wonder if it could just be the abs ecu playing up and failing to communicate with the various sensors or something. I will of course update the thread with the current codes tomorrow, but in the meantime I'd be interested in any thoughts and suggestions
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