PR25DD engine
- CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT-I
- Turn ignition switch OFF.
- Disconnect ECM harness connectors.
- Turn ignition switch ON.
- Check the voltage between ECM harness connector terminals.
ECM
Voltage
(Approx.)
+
-
Connector
Terminal
Connector
Terminal
F90
96
E31
162
Battery voltage
Is inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT-II
Check the voltage between ECM harness connector and ground.
+
-
Voltage
(Approx.)
ECM
Connector
Terminal
F90
96
Ground
Battery voltage
Is inspection result normal?
YES
GO TO 4.
NO
Perform the trouble diagnosis for power supply circuit.
- CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE INPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect intake manifold runner control valve motor harness connector.
- Check the continuity between ECM harness connector and intake manifold runner control valve motor harness connector.
+
-
Continuity
Intake manifold runner control valve motor
ECM
Connector
Terminal
Connector
Terminal
F41
1
F90
91
Not existed
92
Existed
2
91
Existed
92
Not existed
- Also check harness for short to ground.
Is inspection result normal?
YES
GO TO 5.
NO
Repair or replace error-detected parts.
- CHECK ECM GROUND CIRCUIT
- Turn ignition switch OFF.
- Check the continuity between ECM harness connector and the ground.
ECM
Ground
Continuity
Connector
Terminal
F91
5
Ground
Existed
65
F90
69
70
E31
157
159
162
Is inspection result normal?
YES
Check intermittent incident. Refer to Inspection .
NO
Repair or replace error-detected parts.
- CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE
Check Intake manifold runner control valve. Refer to DTC Description .
Is inspection result normal?
YES
Check intermittent incident. Refer to Inspection .
NO
Replace error-detected parts.