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:

Checking engine oil level
1. Park the vehicle on a level surface and apply the parking brake. 2. Start the engine and let it idle until it reaches operating temperature. 3. Turn off the engine. Wait more than 10 minutes for the oil to drain back into the oil pan. 4. Remove the dipstick and wipe it clean. Rei ...

Key slot
Description Detects whether Intelligent Key is inserted. Immobilizer antenna amp checks Intelligent Key transponder. Component Function Check 1. CHECK FUNCTION With CONSULT Check KEY SW -SLOT in Data Monitor mode with CONSULT. Diagnosis Procedure 1. CHECK KEY SLOT POWER SUPPLY CIRCU ...

U1227 AV control unit
DTC Logic Diagnosis Procedure 1.CHECK PLAYBACK OF A DISK (DVD) U1228 AV CONTROL UNIT DTC Logic DTC DETECTION LOGIC U1229 AV CONTROL UNIT DTC Logic DTC DETECTION LOGIC U122A AV CONTROL UNIT DTC Logic Diagnosis Procedure 1.PERFORM THE SELF-DIAGNOSIS When U122A is detected, wri ...