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Diagnosis Procedure
1.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE
  1. Turn ignition switch ON.
  2. Warm up the engine to the normal operating temperature.
    noteWarm up the engine until “COOLANT TEMP/S” on “DATA MONITOR” of M.U.T.-III SE reaches at least 60°C (140°F).
  3. Fully release accelerator pedal and make sure that “TUMBLE POS SEN” indicates between 3.1 V to 4.7 V.
  4. Keep the engine speed 5,000 rpm that “TUMBLE POS SEN” indicates between 0.3 V to 2.1 V.
  5. Check 1st trip DTC.
Is 1st trip DTC detected?
Replace intake manifold. Refer to Exploded View.
.
 
2.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR CIRCUIT
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector and intake manifold runner control valve motor harness connector.
  3. Check the continuity between intake manifold runner control valve motor harness connector and ECM harness connector.
    +−Continuity
    Intake manifold runner control valve motorECM
    ConnectorTerminalConnectorTerminal
    F191F52121existed
    122Not existed
    2121Not existed
    122existed
  4. Also check harness for short to ground and short to power.
Is the inspection result normal?
.
Repair or replace malfunctioning part.
 
3.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE
Check intake manifold runner control valve. Refer to Component Inspection.
Is the inspection result normal?
Replace intake manifold. Refer to Exploded View.
 
4.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE POSITION SENSOR CIRCUIT
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector and intake manifold runner control valve position sensor harness connector.
  3. Check the continuity between intake manifold runner control valve position sensor harness connector and ECM harness connector.
    +−Continuity
    Intake manifold runner control valve position sensorECM
    ConnectorTerminalConnectorTerminal
    F201F5284Existed
    2104
    3107
  4. Also check harness for short to ground and short to power.
Is the inspection result normal?
.
Repair or replace malfunctioning part.
 
5.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE POSITION SENSOR
Check intake manifold runner control valve position sensor. Refer to Intermittent IncidentIntermittent Incident.
Is the inspection result normal?
INSPECTION END
Replace intake manifold. Refer to Exploded View.