Diagnosis Procedure

If DTC P26A5 is displayed with other DTC, first perform the confirmation procedure (trouble diagnosis) for other DTC.

Is applicable DTC detected?

YES

Perform diagnosis of applicable. Refer to DTC Index

NO

GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect multi-way control valve harness connector.
3. Turn ignition switch ON.
4. Check the voltage between multi-way control valve harness connector and ground.

   +		-	Voltage (Approx.)
   Multi-way control valve
   Connector	Terminal
   F98	4	Ground	5 V

Is the inspection result normal?

YES

GO TO 3.

NO

Perform the trouble diagnosis for power supply circuit.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between multi-way control valve harness connector and ECM harness connector.

   Multi-way control valve		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   F98	3	F52	79	Existed

4. Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 4.

NO

Repair or replace error-detected parts.

1. Check the continuity between multi-way control valve harness connector and ECM harness connector.

   Multi-way control valve		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   F98	5	F52	81	Existed

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

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace error-detected parts.

Check the multi-way control valve position sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace multi-way control valve. Refer to Removal and Installation .