DTC U0100-87: Lost Communication With ECM / PCM "A" - Missing message: Action
- Refer to the electrical circuit diagrams and check the power and ground connections to the module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network between the Engine Control Module and the Anti-Lock Braking System Control Module
- To confirm the repair and extinguish the warning lamps, clear the DTC, cycle the ignition state to off, then return the ignition state to on and wait up to 10 seconds