V70: Electrical - Lost communication with many modules

Edisonas · Dec 6th, 2020, 05:37

Hello,

Maybe anyone had the same situation on V70,2012,D5,AWD. The problem occurs when the car is hot, while cold everything is fine and the car is going smoothly. After driving around 15-20km, stopping and getting back to the car while it's hot, starting to drive and CAN-bus errors starting to appear, the gears starting to shift crazy, engine speed on the instrument panel going down and up again after some time. Tried to see if errors coming up after turning of ABS, PCM, PBM, DEM modules, still the same. Also changed ECU and TCM reprogrammed, but the problem still persist.

Thanks for anyone reply.

Edisonas · Dec 14th, 2020, 08:56

Anyone had something similar ?

100K+ · Dec 14th, 2020, 09:21

The only way that you have a chance of success in solving these issues is to get someone with VIDA/DICE and knows how to work it. If not you are guessing at faults and potentially spending telephone numbers on parts. I've read about similar issues to yours and this is usually the best advice.

Cheers
Bob

Dec 6th, 2020, 05:37	#1
Edisonas New Member Last Online: Mar 1st, 2021 11:28 Join Date: Nov 2020 Location: Noreikiskes	Lost communication with many modules Hello, Maybe anyone had the same situation on V70,2012,D5,AWD. The problem occurs when the car is hot, while cold everything is fine and the car is going smoothly. After driving around 15-20km, stopping and getting back to the car while it's hot, starting to drive and CAN-bus errors starting to appear, the gears starting to shift crazy, engine speed on the instrument panel going down and up again after some time. Tried to see if errors coming up after turning of ABS, PCM, PBM, DEM modules, still the same. Also changed ECU and TCM reprogrammed, but the problem still persist. Thanks for anyone reply.

Dec 14th, 2020, 08:56	#2
Edisonas New Member Last Online: Mar 1st, 2021 11:28 Join Date: Nov 2020 Location: Noreikiskes	Anyone had something similar ?

Dec 14th, 2020, 09:21	#3
100K+ Premier Member Last Online: Yesterday 12:50 Join Date: Aug 2008 Location: Newcastle	The only way that you have a chance of success in solving these issues is to get someone with VIDA/DICE and knows how to work it. If not you are guessing at faults and potentially spending telephone numbers on parts. I've read about similar issues to yours and this is usually the best advice. Cheers Bob

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