Dtc Description

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness and connectors (Brake pedal position switch circuit is shorted.)

• Brake pedal position switch

FAIL-SAFE

Engine Control System

Not applicable

Idle Start/Stop System

When a DTC is detected, the start/stop indicator lamp blinks slowly and the idle start/stop system operation is prohibited.

When ECM detects error while operating the idle start/stop system, ECM restarts the engine.

Confirmation Procedure

Confirmation Procedure

1. PRECONDITIONING

   If the other DTC Confirmation Procedure is performed right before this procedure, the ignition switch must be turned OFF and wait for 10 seconds or more to start this procedure.

   >>

   GO TO 2.

2. COMPONENT FUNCTION CHECK

   With CONSULT

   1. Turn ignition switch ON.

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

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

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

   Without CONSULT

   1. Turn ignition switch OFF.

   2. Check the stop lamp when depressing and releasing the brake pedal.

      Brake pedal	Stop lamp
      Fully released	Not illuminated
      Slightly depressed	Illuminated

   Is the inspection result normal?

   YES-1 >>

   To check malfunction symptom before repair: Refer to Intermittent Incident.

   YES-2 >>

   Confirmation after repair: INSPECTION END

   NO >>

   Proceed to DTC Diagnosis Procedure.

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

1. CHECK BRAKE PEDAL POSITION SWITCH FUNCTION

   1. Turn ignition switch OFF.

   2. Disconnect ECM harness connector.

   3. Check the voltage between ECM harness connector and ground as per the following conditions.

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

   Is the inspection result normal?

   YES >>

   Check intermittent incident. Refer to Intermittent Incident.

   NO-1 >>

   Fixed at 0 V: GO TO 2.

   NO-2 >>

   Fixed at battery voltage: GO TO 4.

2. CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY

   1. Disconnect brake pedal position switch harness connector.

   2. Check the voltage 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 the trouble diagnosis for power supply circuit.

3. CHECK BRAKE PEDAL POSITION SWITCH SIGNAL CIRCUIT

   1. Check the continuity 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

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

   Is the inspection result normal?

   YES >>

   GO TO 4.

   NO >>

   Repair or replace error-detected parts.

4. CHECK BRAKE PEDAL POSITION SWITCH

   Check brake pedal position switch. Refer to Component Inspection.

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Replace brake pedal position switch. Refer to Exploded View.