Nissan Altima 2007-2012 Service Manual: U1201 AV control unit

Description

Refer to AV-240, "System Description".

DTC Logic

DTC DETECTION LOGIC

    U1200 AV control unit
    Description Refer to AV-240, "System Description". DTC Logic DTC DETECTION LOGIC ...

    U1204 GPS comm
    Description Refer to AV-240, "System Description". DTC Logic DTC DETECTION LOGIC ...

    Other materials:

    STRG branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the steering angle sensor for damage, bend and loose connection (unit side and connector side). ...

    Inspection and adjustment
    Preliminary Check 1.TIRE PRESSURE Check all tire pressures. Refer to WT-70, "Tire". Do tire pressures match specification? YES >> GO TO 2 NO >> Adjust tire pressure to specified value. 2.LOW TIRE PRESSURE WARNING LAMP Check low tire pressure warning lamp activation. ...

    Fuel injector
    Description The fuel injector is a small, precise solenoid valve. When the ECM supplies a ground to the fuel injector circuit, the coil in the fuel injector is energized. The energized coil pulls the ball valve back and allows fuel to flow through the fuel injector into the intake manifold. ...