Nissan Altima 2007-2012 Service Manual: ECU diagnosis

BCM (BODY CONTROL MODULE)

Reference Value

VALUES ON THE DIAGNOSIS TOOL

Terminal Layout

Physical Values

1: Sedan only

2: With LH front window anti-pinch

3: With LH and RH front window anti-pinch

Wiring Diagram - TIRE PRESSURE MONITORING SYSTEM - Coupe

Wiring Diagram - TIRE PRESSURE MONITORING SYSTEM - Sedan

Self-Diagnosis (With CONSULT-III)

FUNCTION

Self-Diagnostic Results Mode

NOTE: Before performing the self-diagnosis, be sure to register the ID or else the actual malfunction location may be different from that displayed on CONSULT-III.

Self-Diagnosis (Without CONSULT-III)

SELF DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-III)

1. Turn ignition switch ON.

2. Ground the tire pressure warning check connector to initiate self diagnosis.

3. Compare the flashing pattern with the flash code chart below.

NOTE: The system is normal when the low tire pressure warning lamp flashes 5 times and continues repeating. Selfdiagnosis results are erased automatically by turning the ignition switch “OFF”.

    C1734 control unit
    Description An internal malfunction has been detected in the TPMS function of the BCM. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.CHECK SELF-DIAGNOSTIC RESULTS 1. On SELECT DI ...

    Symptom diagnosis
    ...

    Other materials:

    P1740 lock-up select solenoid valve
    Description • Lock-up select solenoid valve controls lock-up clutch pressure or forward clutch pressure (reverse brake pressure). • When controlling lock-up clutch, the valve is turned OFF. When controlling forward clutch, it is turned ON. DTC Logic DTC DETECTION LOGIC DTC CONFIRM ...

    Combination switch input circuit
    Diagnosis Procedure 1. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN 1. Turn the ignition switch OFF. 2. Disconnect the BCM and combination switch. 3. Check continuity between BCM harness connector and combination switch harness connector. Does continuity exist? YES >> GO TO 2 NO ...

    B2556 push-button ignition switch
    Description The switch that changes the power supply position. BCM maintains the power supply position status. BCM changes the power supply position with the operation of the push-button ignition switch. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATIO ...