VR30DDTT engine
- CHECK DTC PRIORITY
If DTC P26A5 is displayed with other DTC, first perform the trouble diagnosis for other DTC.
Is applicable DTC detected?
YES
Perform diagnosis of applicable. Refer to DTC Index . (For turbo high pressure model) or Refer to DTC Index . (For turbo low pressure model).
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
F117
5
Ground
5 V
Is the inspection result normal?
YES
GO TO 3.
NO
Perform the trouble diagnosis for power supply circuit.
- 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
F117
3
F142
125
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
F117
4
F142
110
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
INSPECTION END
NO
Replace multi-way control valve. Refer to MULTI-WAY CONTROL VALVE : Exploded View .