DTC Diagnosis Procedure

1. Turn ignition switch OFF.
2. Pull out 15 A fuse (No. 52) from IPDM E/R.
3. Check that 15 A fuse is not blowing.

Is the fuse blown (open)?

YES

Replace the fuse after repairing the applicable circuit.

NO

GO TO 2.

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

   +		-	Voltage
   FPCM
   Connector	Terminal
   B11	6	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 4.

NO

GO TO 3.

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between FPCM harness connector and IPDM E/R harness connector.

   FPCM		IPDM E/R		Continuity
   Connector	Terminal	Connector	Terminal
   B11	6	E120	15	Existed

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

Is the inspection result normal?

YES

Perform trouble diagnosis for power supply circuit.

NO

Repair or replace error-detected parts.

1. Turn ignition switch OFF.
2. Check the continuity between FPCM harness connector and ground.

   FPCM		--	Continuity
   Connector	Terminal
   B11	3	Ground	Existed

3. Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace error-detected parts.

1. Disconnect ECM harness connector.
2. Check the continuity between FPCM harness connector and ECM harness connector.

   FPCM		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B11	4	E152	182	Existed
   	5		188

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

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace error-detected parts.

1. Disconnect "fuel level sensor unit and fuel pump (main)" harness connector.
2. Check the continuity between FPCM harness connector and "fuel level sensor unit and fuel pump (main)" harness connector.

   FPCM		Fuel level sensor unit and fuel pump (main)		Continuity
   Connector	Terminal	Connector	Terminal
   B11	1	B101	5	Existed
   	2		6

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

Is the inspection result normal?

YES

GO TO 7.

NO

Repair or replace error-detected parts.

Refer to Component Inspection .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace FPCM. Refer to FUEL PUMP CONTROL MODULE (FPCM) : Removal & Installation .