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:

    The door open warning continues displaying, or does not display
    Description • The door ajar warning is displayed even though all of the doors and the trunk are closed. • The door ajar warning is not displayed even though a door or the trunk is ajar. Diagnosis Procedure 1.CHECK BCM INPUT SIGNAL Connect CONSULT-III and check the BCM input signals. ...

    Electrical leak detector
    Electronic Refrigerant Leak Detector PRECAUTIONS FOR HANDLING THE LEAK DETECTOR When performing a refrigerant leak check, use a electronic refrigerant leak detector (J-41995) or equivalent. Ensure that the instrument is calibrated and set properly per the manufacturer's operating instructions. ...

    Main line between DLC and ABS 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 following terminals and connectors for damage, bend and loose connection (connector side and harness side). - Harness co ...