Nissan Altima 2007-2012 Service Manual: ECU diagnosis

AIR CONDITIONER CONTROL

Reference Value

VALUES ON THE DIAGNOSIS TOOL

TERMINAL LAYOUT

PHYSICAL VALUES

Wiring Diagram - Air Conditioner Control (Auto) - Coupe

Wiring Diagram - Air Conditioner Control (Auto) - Sedan

    Power supply and ground circuit for front air control
    Description COMPONENT DESCRIPTION FRONT AIR CONTROL The front air control has a built-in microcomputer which processes information sent from various sensors needed for air conditioner operation. ...

    Other materials:

    ASCD Brake switch
    Description When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is turned ON. ECM detects the state of the brake pedal by those two types of input (ON/OFF signal). Refer to EC-1090, "System Diagram" for the ASCD function. Component Function C ...

    Low tire pressure warning lamp blinks
    Low Tire Pressure Warning Lamp Flashes When Ignition Switch Is Turned On NOTE: If low tire pressure warning lamp flashes as shown, the system is normal. Flash Mode A • This mode shows transmitter status is OFF-mode. Carry out transmitter wake up operation. Refer to WT-5, "Transmitter ...

    ABS 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 ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit ...