Component Function Check

Component Function Check

1. CHECK BRAKE PEDAL POSITION SWITCH FUNCTION

   With CONSULT

   1. Turn ignition switch ON.

   2. Select “BRAKE SW” in “DATA MONITOR” mode of “ENGINE” with CONSULT.

   3. Check “BRAKE SW” indication as per the following conditions.

      Monitor item	Condition		Indication
      BRAKE SW 1	Brake pedal	Slightly depressed	OFF
      		Fully released	ON

   Without CONSULT

   1. Turn ignition switch ON.

   2. Check the voltage between ECM harness connector terminals as per the following.

      ECM			Condition		Voltage (Approx.)
      Connector	+	–
      	Terminal
      E16	150	162	Brake pedal	Slightly depressed	0 V
      				Fully released	Battery voltage

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Refer to Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

1. CHECK BRAKE PEDAL POSITION SWITCH CIRCUIT

   With CONSULT

   1. Turn ignition switch ON.

   2. Select “BRAKE SW 1” in “DATA MONITOR” mode of “ENGINE” with CONSULT.

   3. Check “BRAKE SW 1” indication as per the following conditions.

      Monitor item	Condition		Indication
      BRAKE SW 1	Brake pedal	Slightly depressed	OFF
      		Fully released	ON

   Without CONSULT

   1. Turn ignition switch ON.

   2. Check the voltage between ECM harness connector terminals as per the following.

      ECM			Condition		Voltage (Approx.)
      Connector	+	–
      	Terminal
      E16	150	162	Brake pedal	Slightly depressed	0 V
      				Fully released	Battery voltage

   Is the inspection result normal?

   YES >>

   Check intermittent incident. Refer to Intermittent Incident.

   NO >>

   GO TO 2.

2. CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT

   1. Turn ignition switch ON.

   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
      E84	1	Ground	Battery voltage

   Is the inspection result normal?

   YES >>

   GO TO 3.

   NO >>

   Perform trouble diagnosis for power supply circuit.

3. CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT

   1. Disconnect ECM harness connector.

   2. Check the continuity between brake pedal position switch harness connector and ECM harness connector.

      Brake pedal position switch		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      E84	2	E16	150	Existed

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

   Is the inspection result normal?

   YES >>

   GO TO 4.

   NO >>

   Repair or replace malfunctioning part.

4. CHECK BRAKE PEDAL POSITION SWITCH

   Check brake pedal position switch. Refer to Component Inspection.

   Is the inspection result normal?

   YES >>

   Check intermittent incident. Refer to Intermittent Incident.

   NO >>

   Replace brake pedal position switch. Refer to Removal and Installation.

Component Inspection

Component Inspection

1. CHECK BRAKE PEDAL POSITION SWITCH-1

   1. Turn ignition switch OFF.

   2. Disconnect brake pedal position harness connector.

   3. Check the continuity between brake pedal position switch terminals as per the following conditions.

      Brake pedal position switch		Condition		Continuity
      Terminal
      1	2	Brake pedal	Fully released	Existed
      			Slightly depressed	Not existed

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   GO TO 2.

2. CHECK BRAKE PEDAL POSITION SWITCH-2

   1. Adjust brake pedal position switch installation. Refer to Removal and Installation.

   2. Check the continuity between brake pedal position switch terminals as per the following conditions.

      Brake pedal position switch		Condition		Continuity
      Terminal
      1	2	Brake pedal	Fully released	Existed
      			Slightly depressed	Not existed

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Replace brake pedal position switch. Refer to Removal and Installation.