B26FD

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn ignition switch ON.
2.Check "Self Diagnostic Result" mode of "BCM" using CONSULT.
Is DTC detected?
YES- Refer to "Diagnosis Procedure" .
NO- Shift lock solenoid is OK.


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Intelligent Key System.

1. CHECK POWER SOURCE (STOP LAMP SWITCH)

1.Turn ignition switch OFF.
2.Disconnect stop lamp switch connector.
3.Check voltage between stop lamp switch connector E38 terminal 1 and ground.





Is the inspection result normal?
YES- GO TO 2.
NO-Check the following:
- Harness for short or open between fuse block (J/B) and stop lamp switch
- 10A fuse (No. 10, located in fuse block [J/B])

2. CHECK STOP LAMP SWITCH

Check stop lamp switch. Refer to "Component Inspection (Stop Lamp Switch)" Shift Lock System.
Is the inspection result normal?
YES- GO TO 3.
NO- Replace stop lamp switch. Refer to "Exploded View" Exploded View.

3. CHECK GROUND CIRCUIT (BCM)

1.Check continuity between BCM connector M81 terminals 134,143 and ground.





Revision: March 20122013 Infiniti JX
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace damaged parts.

4. CHECK HARNESS BETWEEN BCM AND STOP LAMP SWITCH FOR OPEN

Check continuity between BCM connector M18 terminal 27 and stop lamp switch connector E38 terminal 2.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace damaged parts.

5. CHECK HARNESS BETWEEN BCM AND STOP LAMP SWITCH FOR SHORT CIRCUIT

Check continuity between BCM connector M18 terminal 27 and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace damaged parts.

6. CHECK HARNESS BETWEEN BCM AND CVT SHIFT SELECTOR FOR OPEN

1.Disconnect CVT shift selector connector.
2.Check continuity between BCM connector M80 terminal 108 and CVT shift selector connector M78 terminal 3.





Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace damaged parts.

7. CHECK HARNESS BETWEEN BCM AND CVT SHIFT SELECTOR FOR SHORT CIRCUIT

Check continuity between BCM connector M80 terminal 108 and ground.





Is the inspection result normal?
YES- GO TO 8.
NO- Repair or replace damaged parts.

8. CHECK GROUND CIRCUIT (CVT SHIFT SELECTOR)

Check continuity between CVT shift selector connector M78 terminal 4 and ground.





Revision: March 20122013 Infiniti JX
Is the inspection result normal?
YES- Replace shift lock solenoid. Refer to "Exploded View" Exploded View.
NO- Repair or replace damaged parts.
Revision: March 20122013 Infiniti JX