Nissan Altima 2007-2012 Service Manual: Rear window defogger switch does not light, but rear window defogger operates

Diagnosis Procedure

1. CHECK FRONT AIR CONTROL (REAR WINDOW DEFOGGER SWITCH)

Check that the front air control (rear window defogger switch) is operating normally.

Is the inspection result normal? YES >> Refer to GI-42, "Intermittent Incident".

NO >> Refer to DEF-10, "Diagnosis Procedure".

    Passenger side door mirror defogger does not operate
    Diagnosis Procedure 1. CHECK DOOR MIRROR DEFOGGER RH Check door mirror defogger RH. Refer to DEF-17, "Component Function Check". Is the inspection result normal? YES >> Refer ...

    Precaution
    Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used alon ...

    Other materials:

    B2557 vehicle speed
    Description BCM receives the 2 vehicle speed signals via CAN communication. One signal is transmitted by the “unified meter”. Another signal is transmitted by “ABS actuator and electric unit (control unit)”. BCM compares both signals to detect the vehicle speed. DTC Logic DTC DETEC ...

    Diagnosis and repair workflow
    Work Flow INTRODUCTION The TCM receives a signal from the vehicle speed sensor, PNP switch and provides shift control or lock-up control via CVT solenoid valves. The TCM also communicates with the ECM by means of a signal sent from sensing elements used with the OBD-related parts of the C ...

    Additional service when replacing control unit
     Description When replacing ECM, this procedure must be performed.  Special Repair Requirement 1.PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS Refer to EC-563, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement&qu ...