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-III.

Is DTC detected? YES >> Go to SEC-73, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.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.

Is the inspection normal? YES >> GO TO 2.

NO-1 >> Check 10 A fuse [No. 38, located in the fuse block (J/B)].

NO-2 >> Check harness for open or short between BCM and fuse.

2.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 3.

NO >> Check harness for open or short between stop lamp switch and fuse.

3.CHECK STOP LAMP SWITCH INPUT SIGNAL 2

1. Connect stop lamp switch connector.

2. Check voltage between BCM harness connector and ground.

Is the inspecting result normal? YES >> GO TO 4.

NO >> GO TO 5.

4.REPLACE BCM

1. Replace BCM. Refer to BCS-93, "Removal and Installation".

2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT-III.

For initialization and registration procedures, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.

>> INSPECTION END

5.CHECK STOP LAMP SWITCH CIRCUIT

1. Disconnect stop lamp switch connector.

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

3. 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 SEC-74, "Component Inspection".

Is the inspection result normal? YES >> GO TO 7.

NO >> Replace stop lamp switch. Refer to BR-21, "Removal and Installation" (LHD) or BR-89, "Removal and Installation" (RHD).

7.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "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 BR-21, "Removal and Installation" (LHD) or BR-89, "Removal and Installation" (RHD).