Diagnosis Procedure

CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in "CIRCUIT INSPECTION ".
Is the inspection result normal?

YES : GO TO 2.

NO : Repair or replace ground connection.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check sensor harness connector for water.
  Water should not exist.
Is the inspection result normal?

YES : GO TO 3.

NO : Repair or replace harness connector.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

Turn ignition switch ON.

Check the voltage between EVAP control system pressure sensor harness connector and ground.

VOLTAGE SPECIFICATION

EVAP control system pressure sensor		Ground	Voltage
Connector	Terminal	Ground	Voltage
B41	3	Ground	Approx. 5V

Is the inspection result normal?

YES : GO TO 6.

NO : GO TO 4.

CHECK SENSOR POWER SUPPLY CIRCUITS

Check harness for short to power and short to ground, between the following terminals.

ECM AND SENSORS TERMINALS REFERENCE

ECM		Sensor
Connector	Terminal	Name	Connector	Terminal
F13	72	Refrigerant pressure sensor	E219	1
F13	76	CKP sensor (POS)	F30	1
E10	91	EVAP control system pressure sensor	B41	3

Is the inspection result normal?

YES : GO TO 5.

NO : Repair short to ground or short to power in harness or connectors.

CHECK COMPONENTS
Check the following.
- Crankshaft position sensor (POS) (Refer to "COMPONENT INSPECTION ".)
- Refrigerant pressure sensor
Is the inspection result normal?

YES : GO TO 7.

NO : Replace malfunctioning component.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to "COMPONENT INSPECTION ".

Is the inspection result normal?

YES : GO TO 7.

NO : Replace EVAP control system pressure sensor.
CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

INSPECTION END