Diagnosis Procedure
- CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection M95. Refer to Ground Inspection in
"CIRCUIT INSPECTION
".
Is the inspection result normal?
YES: GO TO 2.
NO: Repair or replace ground connection.
- CHECK SENSOR POWER SUPPLY 2 CIRCUIT
- Disconnect following sensors harness connector.
- Check harness for short to power and short to ground, between the following terminals.
ECM Sensor Connector Terminal Name Connector Terminal F101 46 CKP sensor F2 1 45 Battery current sensor B10 1 F102 64 EVT control position sensor (bank 2) F19 1 CMP sensor (bank 2) F18 1 74 Mass air flow sensor (bank 1) F31 1 Mass air flow sensor (bank 2) F42 1 M107 107 Refrigerant pressure sensor E77 3 Is the inspection result normal?
YES: GO TO 3.
NO: Repair short to ground or short to power in harness or connectors.
- CHECK COMPONENTS
Check the following.
- CKP sensor (Refer to "COMPONENT INSPECTION ".)
- Mass air flow sensor (bank 1) (Refer to "COMPONENT INSPECTION ".)
- Mass air flow sensor (bank 2) (Refer to "COMPONENT INSPECTION ".)
- Refrigerant pressure sensor (Refer to "COMPONENT FUNCTION CHECK ".)
- Battery current sensor (Refer to "COMPONENT INSPECTION ".)
- Camshaft position sensor (bank 2) (PHASE) (Refer to "COMPONENT INSPECTION ".)
- EVT control position sensor (bank 2) (Refer to
"COMPONENT INSPECTION
".)
Is the inspection result normal?
YES: Perform "INTERMITTENT INCIDENT ".
NO: Replace malfunctioning component.