Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect brake pedal position switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between brake pedal position switch harness connector and ground.

   +		-	Voltage
   Brake pedal position switch
   Connector	Terminal
   E112	1	Ground	Battery voltage

   Is the inspection result normal? 

   YES: GO TO 2.

   NO: Perform the trouble diagnosis for power supply circuit.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between brake pedal position switch harness connector and ECM harness connector.

   +		-		Continuity
   Brake pedal position switch		ECM
   Connector	Terminal	Connector	Terminal
   E112	2	E18	116	Existed

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

   Is the inspection result normal? 

   YES: GO TO 3.

   NO: Repair or replace error-detected parts.

Check the brake pedal position switch. Refer to "COMPONENT INSPECTION (BRAKE PEDAL POSITION SWITCH) "

Is the inspection result normal? 

YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

NO: Replace brake pedal position switch. Refer to "EXPLODED VIEW ".