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:

    B2607 steering lock relay
    Description BCM requests to IPDM E/R to supply power to electronic steering column lock. IPDM E/R sends status of electronic steering column lock back to BCM. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B2607 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U100 ...

    On board diagnostic (OBD) system
    Diagnosis Description INTRODUCTION The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actuators. The ECM also records various emission-related diagnostic information including: The above information can be checked using procedures listed in ...

    Key slot
    Diagnosis Procedure 1.CHECK KEY SLOT POWER SUPPLY CIRCUI 1. Turn ignition switch OFF. 2. Disconnect key slot connector. 3. Check voltage between slot connector and ground. Is the inspection result normal? YES >> GO TO 2 NO >> Repair or replace key slot power supply circuit ...