Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect EVAP control system pressure sensor harness connector.
3. Check sensor harness connector for water.

   Water should not exist.

Is the inspection result normal?

YES

GO TO 2.

NO

Repair or replace harness connector.

1. Turn ignition switch ON.
2. Check the voltage between EVAP control system pressure sensor harness connector and ground.

   +		-	Voltage (Approx.)
   EVAP control system pressure sensor
   Connector	Terminal
   C52	3	Ground	5 V

Is the inspection result normal?

YES

GO TO 4.

NO

GO TO 3.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   C52	3	E16	135	Existed

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

Is the inspection result normal?

YES

Perform the trouble diagnosis for power supply circuit.

NO

Repair or replace malfunctioning part.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   C52	1	E16	158	Existed

4. Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace malfunctioning part.

1. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   C52	2	E16	131	Existed

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

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace malfunctioning part.

Check the EVAP control system pressure sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace EVAP control system pressure sensor. Refer to Exploded View .