Dtc Description

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (TP sensor 1 circuit is open or shorted.)

• Electric throttle control actuator (TP sensor 1)

FAIL-SAFE

Engine Control System

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. CHECK DTC PRIORITY

   If DTC P0222 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

   Is applicable DTC detected?

   YES >>

   Perform diagnosis of applicable. Refer to DTC Description.

   NO >>

   GO TO 2.

2. PRECONDITIONING

   If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

   TESTING CONDITION:

   Before performing the following procedure, confirm that battery voltage is 8 V or more at idle.

   >>

   GO TO 3.

3. PERFORM DTC CONFIRMATION PROCEDURE

   1. Start the engine and let it idle for 1 second.

   2. Check DTC.

   Is DTC detected?

   YES >>

   Proceed to DTC Diagnosis Procedure.

   NO-1 >>

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

   NO-2 >>

   Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

1. CHECK DTC PRIORITY

   If DTC P0222 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

   Is applicable DTC detected?

   YES >>

   Perform diagnosis of applicable. Refer to DTC Description.

   NO >>

   GO TO 2.

2. CHECK THROTTLE POSITION (TP) SENSOR 1 POWER SUPPLY-1

   1. Turn ignition switch OFF.

   2. Disconnect electric throttle control actuator harness connector.

   3. Turn ignition switch ON.

   4. Check the voltage between electric throttle control actuator harness connector terminals.

      Electric throttle control actuator			Voltage (Approx.)
      Connector	+	−
      	Terminal
      F7	3	2	5 V

   Is the inspection result normal?

   YES >>

   GO TO 7.

   NO >>

   GO TO 3.

3. CHECK TP SENSOR 1 POWER SUPPLY-2

   Check the voltage between electric throttle control actuator harness connector and ground.

   +		−	Voltage (Approx.)
   Electric throttle control actuator
   Connector	Terminal
   F7	3	Ground	5 V

   Is the inspection result normal?

   YES >>

   GO TO 5.

   NO >>

   GO TO 4.

4. CHECK TP SENSOR 1 POWER SUPPLY CIRCUIT

   1. Turn ignition switch OFF.

   2. Disconnect ECM harness connector.

   3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      F7	3	F25	95	Existed

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

   Is the inspection result normal?

   YES >>

   Perform trouble diagnosis for ECM power supply circuit. Refer to Diagnosis Procedure.

   NO >>

   Repair or replace malfunctioning part.

5. CHECK TP SENSOR 1 GROUND CIRCUIT

   1. Turn ignition switch OFF.

   2. Disconnect ECM harness connector.

   3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      F7	2	F25	90	Existed

   4. Also check harness for short to power.

   Is the inspection result normal?

   YES >>

   GO TO 6.

   NO >>

   Repair or replace malfunctioning part.

6. CHECK ECM GROUND CIRCUIT

   1. Check the continuity between ECM harness connector and ground.

      ECM		—	Continuity
      Connector	Terminal
      F24	5	Ground	Existed
      	65
      F25	69
      E16	157
      	159
      	162

   2. Also check harness for short to power.

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Repair or replace malfunctioning part.

7. CHECK TP SENSOR 1 INPUT SIGNAL CIRCUIT

   1. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      F7	1	F25	85	Existed

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

   Is the inspection result normal?

   YES >>

   GO TO 8.

   NO >>

   Repair or replace malfunctioning part.

8. CHECK THROTTLE POSITION SENSOR

   Refer to Component Inspection.

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Replace malfunctioning electric throttle control actuator. Refer to Removal and Installation.