Description
BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the engine start condition according to the stop lamp switch ON/OFF status.
Depress the brake pedal and wait for at least 1 second.
Check "Self diagnostic result" with CONSULT-III. Is DTC detected?
YES >> Refer to Diagnosis Procedure.
NO >> Inspection End.
Diagnosis Procedure 1.CHECK STOP LAMP SWITCH INPUT SIGNAL
Turn ignition switch OFF.
Disconnect BCM harness connector.
Check voltage between BCM harness connector and ground.
Is the Inspection result normal?
YES >> Stop lamp switch is OK.
NO >> GO TO 2 2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
Disconnect stop lamp switch harness connector.
Check voltage between stop lamp 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 CIRCUIT
Check continuity between stop lamp switch harness connector E38 (A) terminal 2 and BCM harness connector M18 (B) terminal 26.
Check continuity between stop lamp switch harness connector E38 (A) terminal 2 and ground.