DTC Diagnosis Procedure

1. Disconnect EVAP control system pressure sensor harness connector.
2. Check that water is not inside connectors.

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.

   EVAP control system pressure sensor		Ground	Voltage (V)
   Connector	Terminal
   C17	3	Ground	Approx. 5

Is the inspection result normal?

YES

GO TO 6.

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
   C17	3	E20	125	Existed

Is the inspection result normal?

YES

GO TO 5.

NO

GO TO 4.

Check the following.

• Harness for open between ECM and EVAP control system pressure sensor
• Loose or poor connection for each connector and harness

Repair open circuit.

Refer to Diagnosis Procedure .

Is the inspection result normal?

YES

Perform the trouble diagnosis for power supply circuit. Refer to Diagnosis Procedure .

NO

Repair or replace error-detected parts.

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
   C17	1	E20	148	Existed

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

Is the inspection result normal?

YES

GO TO 8.

NO

GO TO 7.

Check the following.

• Harness for open or short between EVAP control system pressure sensor and ECM
• Loose or poor connection for each connector and harness

Repair open circuit, short to ground or short to power in harness or connectors.

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
   C17	2	E20	121	Existed

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

Is the inspection result normal?

YES

GO TO 10.

NO

GO TO 9.

Check the following.

• Harness for open or short between EVAP control system pressure sensor and ECM
• Loose or poor connection for each connector and harness

Repair open circuit, short to ground or short to power in harness or connectors.

Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 11.

NO

Replace EVAP control system pressure sensor. Refer to EVAP CANISTER : Removal & Installation .

Refer to Inspection .

INSPECTION END