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:
POWER STEERING OIL PUMP
Inspection
RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal before starting the following procedure.
1. Connect the Tool between oil pump discharge connector and
high-pressure hose. Bleed air from the hydraulic circuit while
opening valve fully. Refer to ST-8, "Inspectio ...
Diagnosis system (TCM)
CONSULT-III Function (TRANSMISSION)
CONSULT-III can display each diagnostic item using the diagnostic test
modes shown below
FUNCTION
WORK SUPPORT MODE
Display Item List
Engine Brake Adjustment
CAUTION:
Mode of “+1”“0”“−1”“−2”“OFF” can be selected by p ...
ABS branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ABS actuator and electric unit
(control unit) for damage, bend
and loose connection (unit ...