Nissan Altima 2007-2012 Service Manual: B2109 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 B2109 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-433, "DTC Logic".

• If DTC B2109 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-434, "DTC 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 or N position

- Do not depress the brake pedal

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

Is DTC detected? YES >> Refer to SEC-440, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1.CHECK POWER SUPPLY CIRCUIT

Check IPDM E/R power supply circuit. Refer to PCS-23, "Diagnosis Procedure".

Is the inspection result normal? YES >> GO TO 2

NO >> Repair the malfunctioning parts

2.CHECK FUSE

1. Turn ignition switch OFF.

2. Check 10A fuse (No. 40, located in IPDM E/R).

Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-48, "Removal and Installation".

NO >> Check the following.

• Harness for open or short between IPDM E/R and battery

• Fuse

    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 BC ...

    B210A steering lock condition switch
    Description There are 2 switches in the electronic steering column lock. IPDM E/R compares those 2 switches conditions to judge the present steering status and transmit the result to BCM via CAN ...

    Other materials:

    B210b starter control relay
    Description Starter control relay, integrated in IPDM E/R, permits the starter relay operation when in N or P position and the steering is locked or unlocked. It is installed in parallel with the starter relay. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B210B is displayed with DTC U1 ...

    Noise
    Component Function Check SYMPTOM: Noise INSPECTION FLOW *1 HAC-5, "Operational Check" *2 EM-16, "Checking Drive Belts" (QR25DE) or EM-121, "Checking Drive Belts" (VQ35DE) *3 HAC-87, "Performance Chart" *4 HA-45, "Removal and Installation for E ...

    Symptom diagnosis
    SQUEAK AND RATTLE TROUBLE DIAGNOSES Work Flow CUSTOMER INTERVIEW Interview the customer if possible, to determine the conditions thatexist when the noise occurs. Use the Diagnostic Worksheet during the interviewto document the facts and conditions when the noise occurs and any customer's ...