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:

    Audio unit
    Diagnosis Procedure 1.CHECK FUSES Check that the following fuses are not blown. Are the fuses OK? YES >> GO TO 2 NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. 2.POWER SUPPLY CIRCUIT CHECK 1. Disconnect audio unit connector M43. ...

    P0327, P0328, P0332, P0333 KS
    Description The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM. DTC Logic DTC DETECT ...

    Can communication circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CONNECTOR INSPECTION 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Disconnect all the unit connectors on CAN communication system. 4. Check terminals and connectors for damage, bend and loose con ...