kerayzee 0 Posted September 10, 2016 Report Share Posted September 10, 2016 Hi all, I recently started to have a problem where my auto VR6 did not want to move in reverse, it seemed to engage fine but no bite it just revved. This problem was worse when the engine was cold and improved when the operating temp was reached. This started suddenly after a head gasket change at a workshop. Took it back to complain, they changed the ATF fluid but same fault. I'm not sure if they even checked the codes, somehow I doubt it, either that or they ignored them. Cut to today and I managed to get the fault codes read and this is interesting: Address 02: Auto Trans Labels: 01M-927-733.lbl Part No: 01M 927 733 CT Component: AG4 Getriebe 01M 3363 Coding: 00000 Shop #: WSC 00000 VCID: 041F9A23DE1BEF123B48FA5-0960 10 Faults Found: 00258 - Solenoid Valve 1 (N88) 31-00 - Open or Short to Ground 00260 - Solenoid Valve 2 (N89) 31-00 - Open or Short to Ground 00262 - Solenoid Valve 3 (N90) 31-00 - Open or Short to Ground 00264 - Solenoid Valve 4 (N91) 31-00 - Open or Short to Ground 00266 - Solenoid Valve 5 (N92) 31-00 - Open or Short to Ground 00270 - Solenoid Valve 7 (N94) 31-00 - Open or Short to Ground 00268 - Solenoid Valve 6 (N93) 31-00 - Open or Short to Ground 00518 - Throttle Position Sensor (G69) 16-10 - Signal Outside Specifications - Intermittent 00652 - Gear Monitoring 27-10 - Implausible Signal - Intermittent 00300 - Transmission Fluid Temp. Sensor (G93) 34-00 - No Elaboration Available OK. Clearly not good! After some internet sleuthing I checked the Transmittion Control Module connector (the TCM is under the passenger side rear seat) which was connected but the connector lock was on the open not the locked position...D'oh! I've no idea which of the recent garages that had been anywhere near my car over the last few years had touched this but yeah, not helpful! Anyway after a code clear and retest I got rid of: 00518 - Throttle Position Sensor (G69) 16-10 - Signal Outside Specifications - Intermittent 00652 - Gear Monitoring 27-10 - Implausible Signal - Intermittent 00300 - Transmission Fluid Temp. Sensor (G93) 34-00 - No Elaboration Available Nice! However I am still left with: 00258 - Solenoid Valve 1 (N88) 31-00 - Open or Short to Ground 00260 - Solenoid Valve 2 (N89) 31-00 - Open or Short to Ground 00262 - Solenoid Valve 3 (N90) 31-00 - Open or Short to Ground 00264 - Solenoid Valve 4 (N91) 31-00 - Open or Short to Ground 00266 - Solenoid Valve 5 (N92) 31-00 - Open or Short to Ground 00270 - Solenoid Valve 7 (N94) 31-00 - Open or Short to Ground 00268 - Solenoid Valve 6 (N93) 31-00 - Open or Short to Ground ...so not just one solenoid fault but all of them! Any ideas guys what I should check on the wiring or is it possible the last garage simply did not reconnect / damage the connector to feed the TCM soleniods. (location and pics please!) I'm pretty sure this is related to the no reverse issue and I need to find the earth fault which is affecting all solenoids not just one, I think the odds of all of them failing at once are non-existent! Any help and advice appreciated! Cheers. Link to post Share on other sites
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