Diagnosis Procedure
- CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection E21. Refer to Ground Inspection in "CIRCUIT INSPECTION ".
Is the inspection result normal?
YES: GO TO 2.
NO: Repair or replace ground connection.
- CHECK TUMBLE CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT-I
Check the voltage between ECM harness connector and ground.
TERMINALS VOLTAGE REFERENCEECM Ground Condition Voltage Connector Terminal F7 7 Ground Ignition switch OFF Approx. 0V Ignition switch ON Battery voltage Is the inspection result normal?
YES: GO TO 5.
NO: GO TO 3.
- CHECK TUMBLE CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT-II
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect IPDM E/R harness connector.
- Check the continuity between IPDM E/R harness connector and ECM harness connector.TERMINALS CONTINUITY REFERENCE
IPDM E/R ECM Continuity Connector Terminal Connector Terminal E15 47 F7 7 Existed - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: Refer to "DIAGNOSIS PROCEDURE ".
NO: GO TO 4.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E7, F121
- Harness for open or short between ECM and IPDM E/R
Repair open circuit or short to ground or short to power in harness or connectors.
- CHECK TUMBLE CONTROL VALVE MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Disconnect tumble control valve actuator harness connector.
- Disconnect ECM harness connector.
- Check the continuity between tumble control valve actuator harness connector and ECM harness connector.TERMINALS CONTINUITY REFERENCE
Tumble control valve actuator ECM Continuity Connector Terminal Connector Terminal F41 4 F7 1 Not existed 3 Existed 5 1 Existed 3 Not existed - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 6.
NO: Repair open circuit or short to ground or short to power in harness or connectors.
- CHECK TUMBLE CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT-I
- Reconnect ECM harness connector disconnected.
- Turn ignition switch ON.
- Check the voltage between tumble control valve actuator harness connector and ground.TERMINALS VOLTAGE REFERENCE
Tumble control valve actuator Ground Voltage Connector Terminal F41 1 Ground Approx. 5V
Is the inspection result normal?
YES: GO TO 12.
NO: GO TO 7.
- CHECK TUMBLE CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT-II
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between tumble control valve actuator harness connector and ECM harness connector.TERMINALS CONTINUITY REFERENCE
Tumble control valve actuator ECM Continuity Connector Terminal Connector Terminal F41 1 F8 72 Existed
Is the inspection result normal?
YES: GO TO 8.
NO: Repair open circuit.
- CHECK TUMBLE CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following terminals.
TERMINALS REFERENCEECM Sensor Connector Terminal Name Connector Terminal F8 72 Tumble control valve actuator F41 1 Refrigerant pressure sensor E49 3 76 CKP sensor (POS) F20 1 E16 87 APP sensor E110 5 91 EVAP control system pressure sensor B47 3 Is the inspection result normal?
YES: GO TO 9.
NO: Repair short to ground or short to power in harness or connectors.
- CHECK COMPONENTS
Check the following.
- Refrigerant pressure sensor (Refer to "DIAGNOSIS PROCEDURE ".)
- Crankshaft position sensor (POS) (Refer to "COMPONENT INSPECTION ".)
- EVAP control system pressure sensor (Refer to "COMPONENT INSPECTION ".)
Is the inspection result normal?
YES: GO TO 10.
NO: Replace malfunctioning components.
- CHECK APP SENSOR
Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: GO TO 15.
NO: GO TO 11.
- REPLACE ACCELERATOR PEDAL ASSEMBLY
- Replace accelerator pedal assembly. Refer to "REMOVAL AND INSTALLATION ".
- Refer to "SPECIAL REPAIR REQUIREMENT ".
INSPECTION END
- CHECK TUMBLE CONTROL VALVE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between tumble control valve actuator harness connector and ECM harness connector.TERMINALS CONTINUITY REFERENCE
Tumble control valve actuator ECM Continuity Connector Terminal Connector Terminal F41 2 F8 52 Existed - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 13.
NO: Repair open circuit or short to ground or short to power in harness or connectors.
- CHECK TUMBLE CONTROL VALVE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Check the continuity between tumble control valve actuator harness connector and ECM harness connector.TERMINALS CONTINUITY REFERENCE
Tumble control valve actuator ECM Continuity Connector Terminal Connector Terminal F41 3 F8 54 Existed - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 14.
NO: Repair open circuit or short to ground or short to power in harness or connectors.
- Check the continuity between tumble control valve actuator harness connector and ECM harness connector.
- CHECK TUMBLE CONTROL VALVE
Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: GO TO 15.
NO: Replace intake manifold adapter.
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
Is the inspection result normal?
YES: Replace intake manifold adapter.
NO: Repair or replace harness or connectors.