Nissan Maxima Service and Repair Manual: ECM branch line circuit

Main line between A-bag and ABS circuit

Diagnosis Procedure 1.CHECK CONNECTOR  Turn the ignition switch OFF.  Disconnect the battery cable from the negative terminal.  Check the following terminals ...

ADP branch line circuit

Diagnosis Procedure 1.CHECK CONNECTOR  Turn the ignition switch OFF.  Disconnect the battery cable from the negative terminal.  Check the following terminals ...

Other materials:

Unlock sensor
Description Detects door lock condition of driver door. Component Function Check 1. CHECK FUNCTION With CONSULT Check unlock sensor UNLK SEN−DR in "Data Monitor" mode. Diagnosis Procedure 1. CHECK UNLOCK SENSOR POWER SUPPLY Check signal between BCM connector and ground with o ...

Check cooling fan relay
Description The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred via the CAN communication line from BCM to ECM via the IPDM E/R. Component Function Check 1.CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION Turn ignition switch ON. Connec ...

Headlamp (HI) circuit
Description The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on inputs from the BCM over the CAN communication lines. When the headlamp high relay is energized, power flows through fuses 48 and 49, located in the IPDM E/R. Power then flow ...