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:

Both doors mirror defogger don't operate but rear window defogger operates
Diagnosis Procedure 1. CHECK DOOR MIRROR DEFORGGER FUSE Check if the following fuse in fuse block (J/B) is blown. 2. CHECK DOOR MIRROR DEFORGGER CIRCUIT Turn ignition switch OFF. Disconnect the following harness connectors. Fuse block (J/B) connector M5 Door mirror LH D4 Door ...

Checking engine coolant level
Check the coolant level in the reservoir when the engine is cold. If the coolant level is below the MIN level B , add coolant to the MAX level A . If the reservoir is empty, check the coolant level in the radiator when the engine is cold. If there is insufficient coolant in the radiator, fi ...

Automatic anti-glare rearview mirror
The inside mirror is designed so that it automatically dims during night time conditions and according to the intensity of the headlights of the vehicle following you. The automatic anti-glare feature is activated when the ignition switch is in the ON position. The indicator light will i ...