Nissan Maxima Service and Repair Manual: U0100 lost communication (ECM A)

DTC/circuit diagnosis

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U1000 CAN comm circuit

Description CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excelle ...

Other materials:

Normal operating condition
COMPASS COMPASS : Description COMPASS  The electronic compass is highly protected from changes in most magnetic fields. However, some large changes in magnetic fields can affect it. Some examples are (but not limited to): high tension power lines, large steel buildings, sub ...

L terminal circuit (open)
Description The "L" terminal circuit controls the charge warning lamp. The charge warning lamp turns ON when the ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine running, the charge warning lamp turns OFF. If the charge warning lamp i ...

Combination switch input circuit
Diagnosis Procedure 1. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN Turn the ignition switch OFF. Disconnect the BCM and combination switch. Check continuity between BCM harness connector and combination switch harness connector. 2. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT ...