Date registered: Dec 2004
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2000 S500 no turnover, keys turn
I have a 00 S500 at my shop when you turn the key on everything lights up normal but car will not start after turning the key. Check all visible fuses & square relays in left and right engine compartment and all fuses under rear seat. Disconnected and tried with new battery. Tried using both keys with same symptoms. Carsoft cleared codes in all modules. Engine ECU reports cannot communicate with EGS. EGS module reports a half dozen falts: disturbed communication to engine ECU, non-communication, and implausible values for engine rmp sensor. Also live data shows a constant and correct shifter position gear, but shows a gear value for the actual gear and target gear that occasionally flickers if you watch it close. The transmission connector has been replaced with a new one, and there was not any fluid in the wiring harnes during the change of the connector. The car can be cranked by bridging the starter with they key in position and starts and runs fine, but is in limp-home mode. Three SAM modules report no faults.
I know there is a 4th fuse box in the trunk, but does this have anything to do with starting?
Any help is appreciated.
Car will not start with either key.
Does this car have K40? If so where is the location?
Is there a box that controls CAN MOST or D2B comm between the engine ECU and the EGS ECU?