Nissan Altima 2007-2012 Service Manual: B2619 BCM

Description

BCM requests IPDM E/R to supply power to steering lock unit. After receiving the power, the steering lock unit transmits an ON signal to BCM.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.

- CVT selector lever is in the P position

- Do not depress brake pedal

2. Check “Self diagnostic result” with CONSULT-III.

Is DTC detected? YES >> Refer to SEC-498, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1.INSPECTION START

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See SEC-498, "DTC Logic".

Is the DTC B2619 displayed again? YES >> Replace BCM. Refer to BCS-96, "Removal and Installation".

NO >> Inspection End.

    B2617 starter relay circuit
    Description Located in IPDM E/R, it runs the starter motor. The starter relay is turned ON by the BCM when the ignition switch is in START position. IPDM E/R transmits the starter relay ON signal ...

    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 ...

    Other materials:

    B2108 steering lock relay
    Description The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication. IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B2108 is displayed with DTC U1000, first perf ...

    Malfunction indicator lamp
    Description The Malfunction Indicator Lamp (MIL) is located on the combination meter. The MIL will illuminate when the ignition switch is turned ON without the engine running. This is a bulb check. When the engine is started, the MIL should turn off. If the MIL remains illuminated, the on ...

    Cooling fan
    Description The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant pressure, and air conditioner ON signal. The control system has 4-step control [HIGH/MIDDLE/LOW/OFF]. COOLING FAN MOTOR The cooling fan operates at each speed when the cur ...