Got an issue with a disco 3 when idling or driving faults come up on Instrument cluster ignition on and off it clears happens again a few minutes later. DTC read are U0100-87 PBM lost comms with engine control module control module A. It has had a new instrument cluster and power train control module. Disconnecting the PCM connectors and the battery I put one multimeter led to a good ground and test all the wires at the PCM I find them all clear except one wire that has continuity with the multimeter bleep. I think I have a short to ground in the engine bay harness, have you seen this issue before?
Jun 26, 2022 at 5:48 AM
