PR25DD engine

1. Turn ignition switch OFF.
2. Check ground connection. Refer to Ground Inspection in Refer to Inspection .

Is the inspection result normal?

YES

GO TO 2.

NO

Repair or replace ground connection.

Check MAP sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 3.

NO

Replace MAP sensor. Refer to Removal and Installation .

1. Turn ignition switch OFF.
2. Disconnect MAP sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between MAP sensor harness connector and ground.

   +		-	Voltage (Approx.)
   MAP sensor
   Connector	Terminal
   F71	1	Ground	5 V

Is the inspection result normal?

YES

GO TO 5.

NO

GO TO 4.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between ECM harness connector and MAP sensor harness connector.

   ECM		MAP sensor		Continuity
   Connector	Terminal	Connector	Terminal
   F91	54	F71	1	Existed

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

Is the inspection result normal?

YES

Perform the trouble diagnosis for ECM 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 ECM harness connector and MAP sensor harness connector.

   ECM		MAP sensor		Continuity
   Connector	Terminal	Connector	Terminal
   F91	49	F71	3	Existed

4. Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace error-detected parts.

1. Check the continuity between ECM harness connector and MAP sensor harness connector.

   ECM		MAP sensor		Continuity
   Connector	Terminal	Connector	Terminal
   F91	52	F71	2	Existed

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

Is the inspection result normal?

YES

INSPECTION END

NO

Repair or replace error-detected parts.