DTC Diagnosis Procedure
- CHECK DTC PRIORITY
- If DTC P26A5 is displayed with DTC P0117 or P0118 first perform the trouble diagnosis for DTC P0117 or P0118.
- If DTC P26A5 is displayed with DTC P26A3 first perform the trouble diagnosis for DTC P26A3.
- If DTC P26A5 is displayed with DTC P26A6, or P26A7 first perform the trouble diagnosis for DTC P26A6, or P26A7.
Is applicable DTC detected?
YES
Perform diagnosis of applicable. Refer to DTC Index .
NO
GO TO 2.
- 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
F92
5
Ground
5 V
Is the inspection result normal?
YES
GO TO 4.
NO
GO TO 3.
- CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Perform Diagnosis Procedure .
Is inspection result normal?
YES
Perform the trouble diagnosis for power supply circuit. Refer to DTC 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
F92
3
F78
43
Existed
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 5.
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
F92
4
F79
61
Existed
- Also check harness for short to ground and to power.
Is the inspection result normal?
YES
GO TO 6.
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 (Multi-way Control Valve) .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace multi-way control valve. Refer to Removal and Installation .