Nissan Altima (L32) 2007-2012 Service Manual: B2612 steering status
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 communication.
DTC Logic
DTC DETECTION LOGIC
NOTE: • If DTC B2612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-433, "DTC Logic".
• If DTC B2612 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
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 brake pedal.
- Steering is locked.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected? YES >> Refer to SEC-492, "Diagnosis Procedure".
NO >> GO TO 2
2.PERFORM DTC CONFIRMATION PROCEDURE 2
1. Turn ignition switch ON.
2. Turn ignition switch OFF.
3. Press door switch.
4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected? YES >> Refer to SEC-492, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.INSPECTION START
Check the case in which DTC is detected.
• Case1: It is detected after ignition switch is changed from ON to OFF and door switch is pressed.
• Case2: It is detected after ignition switch is changed from ON to OFF
In which case is DTC detected? Case1 >> GO TO 2
Case2 >> GO TO 7
2.CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect electronic steering column lock harness connector and IPDM E/R harness connector.
3. Check voltage between electronic steering column lock harness connector and ground.
Is the inspection result normal? YES >> GO TO 4
NO >> GO TO 3
3.CHECK ELECTRONIC STEERING COLUMN LOCK CIRCUIT-I
1. Disconnect BCM harness connector.
2. Check continuity between BCM harness connector M19 (A) terminal 85 and electronic steering column lock harness connector M32 (B) terminal 3.
3. Check continuity between BCM harness connector M19 (A) terminal 85 and ground.
Is the inspection result normal? YES >> GO TO 6
NO >> Repair harness or connector.
4.CHECK IPDM E/R OUTPUT SIGNAL
1. Connect IPDM E/R harness connector.
2. Disconnect BCM harness connector.
3. Check voltage between electronic steering column lock harness connector and ground.
Is the inspection result normal? YES >> Replace electronic steering column lock.
NO >> GO TO 5
5.CHECK ELECTRONIC STEERING COLUMN LOCK CIRCUIT-II
1. Check continuity between electronic steering column lock harness connector M32 (A) terminal 3 and IPDM E/R harness connector E18 (B) terminal 32.
2. Check continuity between electronic steering column lock harness connector M32 (A) terminal 3 and ground.
Is the inspection result normal? YES >> GO TO 6
NO >> Repair harness or connector.
6.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> Inspection End.
7.CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect electronic steering column lock harness connector and IPDM E/R harness connector.
3. Check voltage between electronic steering column lock harness connector and ground.
Is the inspection result normal? YES >> GO TO 9
NO >> GO TO 8
8.CHECK ELECTRONIC STEERING COLUMN LOCK CIRCUIT-I
1. Disconnect BCM harness connector.
2. Check continuity between BCM harness connector M19 (A) terminal 86 and electronic steering column lock harness connector M32 (B) terminal 8.
3. Check continuity between BCM harness connector M19 (A) terminal 86 and ground.
Is the inspection result normal?
YES >> GO TO 11
NO >> Repair harness or connector.
9.CHECK IPDM E/R OUTPUT SIGNAL
1. Connect IPDM E/R harness connector.
2. Disconnect BCM harness connector.
3. Check voltage between electronic steering column lock harness connector and ground.
Is the inspection result normal? YES >> Replace electronic steering column lock.
NO >> GO TO 10
10.CHECK ELECTRONIC STEERING COLUMN LOCK CIRCUIT-II
1. Check continuity between electronic steering column lock harness connector M32 (A) terminal 8 and IPDM E/R harness connector E18 (B) terminal 33.
2. Check continuity between electronic steering column lock harness connector and ground.
Is the inspection result normal? YES >> GO TO 11
NO >> Repair harness or connector.
11.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> Inspection End.
B260F engine status
Description BCM receives the engine status signal from ECM via CAN communication. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B260F is displayed with DTC U1000, first perform the trouble diag ...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 ...Other materials:
IPDM E/R (Intelligent power distribution
module engine room)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
Wiring Diagram — Sedan
Fail Safe
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs
fail-safe control. After CAN
communication recov ...
Low tire pressure warning lamp
stays on
Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On
DIAGNOSTIC PROCEDURE
1.CHECK BCM CONNECTORS
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors.
3. Check terminals for damage or loose connections.
Is the inspection result normal?
YES >> GO ...
ECM 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 following terminals and connectors for damage, bend and loose
connection (unit side and connector
side).
- ECM
- Harnes ...