Nissan Altima 2007-2012 Service Manual: Ecu diagnosis

DIAGNOSIS SENSOR UNIT

Wiring Diagram

Trouble Diagnosis with CONSULT-III

DIAGNOSTIC CODE CHART

NOTE: Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated using air bag warning lamp or CONSULT-III each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.

Trouble Diagnosis without CONSULT-III

WARNING LAMP FLASH CODE CHART

NOTE: Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated using air bag warning lamp each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.

    B1209 – b1210 collision detection
    Description DTC B1209 - B1210 COLLISION DETECTION The air bag diagnosis sensor unit will set this DTC if it has detected a collision which has resulted in a frontal or side deployment of one or m ...

    Symptom diagnosis
    SRS AIR BAG SYSTEM "AIR BAG" Warning Lamp Does Not Turn Off DIAGNOSTIC PROCEDURE 7 1.CHECK CONDITION OF AIR BAG MODULE Inspect for any deployed air bag modules or seat belt pre-tension ...

    Other materials:

    Anti-pinch system does not operate normally (passenger side)
    Diagnosis Procedure 1. PERFORM INITIALIZATION PROCEDURE Perform initialization procedure. Refer to PWC-295, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement". Is the inspection result normal? YES >> GO TO 2 NO >> Repair or replace the ma ...

    P2122, P2123 APP sensor
    Description The accelerator pedal position sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the ECM. Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometers which tr ...

    B261A push-button ignition switch
    Description IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives push-button ignition switch status by hardwire input. BCM compares the 2 signals for mismatch. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B261A is displayed with DTC U1000, ...