Diagnosis Procedure
- CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect exhaust valve timing (EVT) control solenoid valve harness connector.
- Turn ignition switch ON.
- Check the voltage between EVT control solenoid valve harness connector and ground.VOLTAGE REFERENCE TABLE
DTC EVT control solenoid valve Ground Voltage Bank Connector Terminal P0078 1 F46 2 Ground Battery voltage P0084 2 F62 2 Is the inspection result normal?
YES: GO TO 3.
NO: GO TO 2.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E10, F10
- Harness for open or short between EVT control solenoid valve and IPDM E/R
Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK EVT CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between EVT control solenoid valve harness connector and ECM harness connector.CONTINUITY REFERENCE TABLE
DTC EVT control solenoid valve ECM Continuity Bank Connector Terminal Connector Terminal P0078 1 F46 1 F111 61 Existed P0084 2 F62 1 57 - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 4.
NO: Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK EVT CONTROL SOLENOID VALVE
Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES: GO TO 5.
NO: Replace malfunctioning EVT control solenoid valve.
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
INSPECTION END