DTC Diagnosis Procedure
- CHECK MULTI-WAY CONTROL VALVE POSITION SENSOR POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect multi-way control valve harness connector.
- Turn ignition switch ON.
- Check the voltage between multi-way control valve harness connector and ground.
+
-
Voltage
(Approx.)
Multi-way control valve
Connector
Terminal
F20
5
Ground
5 V
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Refer to Diagnosis Procedure .
Is inspection result normal?
YES
Perform the trouble diagnosis for power supply circuit. Refer to Diagnosis Procedure .
NO
Repair or replace error-detected parts.
- CHECK MULTI-WAY CONTROL VALVE POSITION SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between multi-way control valve harness connector and ECM harness connector.
+
-
Continuity
Multi-way control valve
ECM
Connector
Terminal
Connector
Terminal
F20
3
F91
43
Existed
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace error-detected parts.
- CHECK MULTI-WAY CONTROL VALVE POSITION SENSOR INPUT SIGNAL CIRCUIT
- Check the continuity between multi-way control valve harness connector and ECM harness connector.
+
-
Continuity
Multi-way control valve
ECM
Connector
Terminal
Connector
Terminal
F20
4
F92
61
Existed
- 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 continuity between multi-way control valve harness connector and ECM harness connector.
- CHECK MULTI-WAY CONTROL VALVE POSITION SENSOR
Check the multi-way control valve position sensor. Refer to Component Inspection .
Is the inspection result normal?
YES
Check intermittent incident. Refer to Inspection .
NO
Replace multi-way control valve. Refer to MULTI-WAY CONTROL VALVE : Removal & Installation .