B2555

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 POWER SOURCE (STOP LAMP SWITCH)

1.Turn ignition switch OFF.
2.Disconnect stop lamp switch connector.
3.Check voltage between stop lamp switch connector E39 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 (STOP LAMP RELAY)

1.Remove the stop lamp relay.
2.Check continuity between stop lamp relay connector E57 terminal 1 and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace damaged parts.

4. CHECK HARNESS BETWEEN STOP LAMP RELAY AND BCM

1.Check continuity between stop lamp relay connector E57 terminal 3 and BCM connector M17 terminal 27.





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

5. CHECK HARNESS BETWEEN STOP LAMP SWITCH AND STOP LAMP RELAY

1.Check continuity between stop lamp relay connector E57 terminal 3 and stop lamp switch connector E39
terminal 2.





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

6. CHECK GROUND CIRCUIT (STOP LAMP RELAY)

1.Remove the stop lamp relay.
2.Check continuity between stop lamp relay connector E57 terminal 1 and ground.





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

7. CHECK POWER SOURCE (STOP LAMP RELAY)

1.Check voltage between stop lamp relay connector E57 terminal 5 and ground.





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

8. CONNECTOR INSPECTION

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

9. 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.

10. 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.