Nissan Maxima Service and Repair Manual: ECU diagnosis information

Vehicle security indicator

Description  Vehicle security indicator is built in combination meter.  NVIS (Nissan Vehicle Immobilizer System-NATS) and vehicle security system conditions are indicate ...

BCM (body control module)

Reference Value NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information. Activate and dis ...

Other materials:

BCM branch line circuit
Diagnosis Procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). 2.CHECK HARNESS FOR OPEN CIRCUIT Disc ...

B1023 passenger air bag off indicator
Description DTC B1023 FRONT PASSENGER AIR BAG OFF INDICATOR The front passenger air bag off indicator is wired to the air bag diagnosis sensor unit. The air bag diagnosissensor unit monitors the front passenger air bag off indicator and circuit for failures. PART LOCATION DTC Logic DTC DETE ...

Power supply and ground circuit
BCM BCM : Diagnosis Procedure 1. CHECK FUSE AND FUSIBLE LINK Check if the following BCM fuses or fusible link are blown. 2. CHECK POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect BCM. Check voltage between BCM harness connector and ground. 3. CHECK GROUND CIRCUIT Che ...