Diagnosis Procedure

1. Turn ignition switch OFF.
2. Check the stop lamp when depressing and releasing the brake pedal.
   BRAKE PEDAL CONDITION
   
   

   Brake pedal	Stop lamp
   Fully released	Not illuminated
   Slightly depressed	Illuminated

Is 1st trip DTC detected?

YES: GO TO  4.

NO: GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the voltage between stop lamp switch harness connector and ground.
   TERMINALS VOLTAGE REFERENCE
   
   

   Stop lamp switch		Ground	Voltage
   Connector	Terminal
   E115	1	Ground	Battery voltage

Is the inspection result normal?

YES: GO TO  4.

NO: GO TO 3.

Check the following.

• Harness connectors E105, M77
• 10A fuse (No. 11)
• Harness for open or short between stop lamp switch and battery

Repair open circuit or short to ground or short to power in harness or connectors.

1. Disconnect ECM harness connector.
2. Check the continuity between ECM harness connector and stop lamp switch harness connector.
   TERMINALS CONTINUITY REFERENCE
   
   

   ECM		Stop lamp switch		Continuity
   Connector	Terminal	Connector	Terminal
   E16	106	E115	2	Existed

3. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES: GO TO 5.

NG: Repair open circuit or short to ground or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION (STOP LAMP SWITCH) ".

Is the inspection result normal?

YES: GO TO 6.

NO: Replace stop lamp switch.

Refer to "INTERMITTENT INCIDENT ".

INSPECTION END