B2555

B2555 STOP LAMP

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Depress the brake pedal and wait 1 second or more.
2.Check DTC in "Self-Diagnostic Result" mode of "BCM" using CONSULT.
Is DTC detected?
YES- Go to "Diagnosis Procedure" .
NO- Inspection End.


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Engine Start Function.

1. CHECK BRAKE SWITCH FUNCTION

1.Turn ignition switch ON.
2.Select "BRAKE SW1" and "BRAKE SW2" in DATA MONITOR mode of INTELLIGENT KEY with CONSULT.
3.Check "BRAKE SW1" and "BRAKE SW2" indication under the following conditions.





Is the inspection result normal?
YES- Refer to "Intermittent Incident" Intermittent Incident.
NO-1- If BRAKE SW1 is incorrect. GO TO 2.
NO-2- If BRAKE SW2 is incorrect. GO TO 3.

2. CHECK STOP LAMP SWITCH INPUT SIGNAL 1

1.Turn ignition switch OFF.
2.Disconnect BCM connector.
3.Check voltage between BCM harness connector and ground.





Revision: March 20122013 Infiniti JX
Is the inspection normal?
YES- GO TO 7.
NO-1- Check 10 A fuse [No. 10, located in the fuse block (J/B)].
NO-2- Check harness for open or short between BCM and fuse.

3. CHECK STOP LAMP SWITCH INPUT SIGNAL 2

1.Disconnect BCM connector M18..
2.Check voltage between BCM harness connector and ground.





Is the inspecting result normal?
YES- GO TO 7.
NO- GO TO 4.

4. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1.Disconnect stop lamp switch connector.
2.Check voltage between stop lamp switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Check harness for open or short between stop lamp switch and fuse.

5. CHECK STOP LAMP SWITCH CIRCUIT

1.Check continuity between stop lamp switch harness connector and BCM harness connector.





2.Check continuity between stop lamp switch harness connector and ground.





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

6. CHECK STOP LAMP SWITCH

Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 9.
NO- Replace stop lamp switch. Refer to "Exploded View" Exploded View.

7. CONNECTOR INSPECTION

Check BCM connectors and terminals for deformation, disconnection, looseness or damage.
Revision: March 20122013 Infiniti JX
Is the inspection result normal?
YES- GO TO 8.
NO- Repair or replace as necessary.

8. REPLACE BCM

1.Replace BCM. Refer to "Removal and Installation" Service and Repair.
2.Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
- Inspection End.

9. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- Inspection End.


Component Inspection


1. CHECK STOP LAMP SWITCH

1.Turn ignition switch OFF.
2.Disconnect stop lamp switch connector.
3.Check continuity between stop lamp switch terminals.





Is the inspection result normal?
YES- Inspection End.
NO- Replace stop lamp switch. Refer to "Exploded View" Exploded View.
Revision: March 20122013 Infiniti JX