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 (Manual) - Coupe

Wiring Diagram - Air Conditioner Control (Manual) - Sedan

    Power supply and ground circuit for front air control
    Description FRONT AIR CONTROL The front air control has a built-in microcomputer which processes information sent from temperature control dial and various switches needed for air conditioner ope ...

    Other materials:

    Meter buzzer circuit
    Description • The buzzer for warning chime system is installed in the combination meter. • The combination meter sounds the alarm buzzer based on the signals transmitted from various units. Component Function Check 1. CHECK OPERATION OF METER BUZZER 1. Select “BUZZER” of “BCM” o ...

    Vin registration
     Description VIN Registration is an operation to register VIN in ECM. It must be performed each time ECM is replaced. NOTE: Accurate VIN which is registered in ECM may be required for Inspection & Maintenance (I/M).  Special Repair Requirement 1.CHECK VIN Check the VIN of ...

    P0451 evap control system pressure sensor
    Description The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC Confirmation Procedure has been previously con ...