Nissan Maxima Service and Repair Manual: P1615 diffrence of key

P1612 chain of ECM-IMMU

Description BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK. ECM prevents the engine from starting if the ID is not registered. BCM st ...

B2190 nats antenna AMP.

Description Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed. Prohibits the start of engine when an unregistered ID of Intelligent Key is us ...

Other materials:

Additional service when replacing transaxle assembly
Description When replacing the transaxle assembly, perform the following work. ERASING, LOADING AND STORING OF CALIBRATION DATA  The TCM acquires calibration data (individual characteristic value) of each solenoid that is stored in the ROM assembly (in the control valve). This enabl ...

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 display TPMS transmitter IDs Display tire pressure reported by the TPMS transmitter Read TPMS DTCs Re ...

B terminal circuit
Description "B" terminal circuit supplies power to charge the battery and operate the vehicle's electrical system. Diagnosis Procedure 1.CHECK "B" TERMINAL CONNECTION Turn ignition switch OFF. Check if "B" terminal is clean and tight 2.CHECK "B" TERMINAL CIRCUIT Check voltage between ...