Something else I forgot to mention (that I remember reading on another thread) is that if I hold my foot on the brake and try to also apply the accelerator pedal nothing happens. On my 2003 XC70 I can gas and brake simultaneously, now is this something that is common on the 02's or a symptom of the ...

2002 XC70 does not have Magnetti Marelli ETM, it uses the Bosch electric throttle. The adaptation for that unit can be commanded with VIDA or you turn ignition on without starting engine and wait for about 50 seconds and you'll hear the throttle get cycled twice by ECM to learn the fully open and f...

A weak battery prevents ECM from resetting if there is an error code. My experience, a fully charged battery is needed for VIDA/DiCE to communicate without missing signals, hence calling stored instruction "cut off fuel". ETM and AP communication is interrupted due to error code NOT being...

Hello everyone, in a previous post I was having issues with my wife's O2 XC70 being stuck in a limp mode after replacing a broken serpentine belt. I'm wondering if while she was driving the car off of the battery power the low voltage may have caused the accelerator pedal to stop communicating with...

Hello everyone, in a previous post I was having issues with my wife's O2 XC70 being stuck in a limp mode after replacing a broken serpentine belt. I'm wondering if while she was driving the car off of the battery power the low voltage may have caused the accelerator pedal to stop communicating with ...

So now I got a new problem, I tried removing the ECM and TCM so I could inspect them to make sure that everything looked in its place and now after reinstalling them the car will not start. Getting a p0727 and p2121 code now. Car will crank but will not start.

Okay so far I have swapped all relays both in the trunk as well as under the hood with no change. I have unplugged the wiring harness that goes to the throttle body cycled the key a few times then plugged it back in also with no change. What should I try next?

Cleared the codes but they come back immediately without even showing a check engine light??? Looking at standard OBD-II P-codes, not Volvo-specific, you did not clear all of them: need DiCE/VIDA to do so. Did you check fuses/relays? In VIDA it is also possible to run accelerator pedal test. About ...

Clean the codes, they may have beeen recorded when the modules were shutting off because low voltage. Also it is typical for the timing belt to jump one teeth or more when the drive belt snaps. Check the timing. Cleared the codes but they come back immediately without even showing a check engine li...

Greetings everyone. The other day my wife's a 01 XC70 broke a serpentine belt, she was able to drive the car to a safe location and of course eventually everything shut off on her from running on just the battery. I replaced the belt and took the car out for a test drive only to find out it would on...