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DTC Diagnosis Procedure
1.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR POWER SUPPLY
  1. Turn ignition switch ON.
  2. Check the voltage between ECM harness connector.
    ECMVoltage
    +-
    ConnectorTerminalConnectorTerminal
    F515E16160Battery voltage
Is the inspection result normal?
.
.
 
2.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Disconnect IPDM E/R harness connector.
  4. Check the continuity between ECM harness connector and IPDM E/R harness connector.
    +−Continuity
    ECMIPDM E/R
    ConnectorTerminalConnectorTerminal
    F515F3573Existed
  5. Also check harness for short to ground.
Is the inspection result normal?
Perform the trouble diagnosis for power supply circuit.
Repair or replace error-detected parts.
 
3.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR OUTPUT SIGNAL CIRCUIT
  1. Disconnect intake manifold runner control valve motor harness connector.
  2. 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
  3. Also check harness for short to ground and to power.
Is the inspection result normal?
.
Repair or replace error-detected parts.
 
4.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR
Check the intake manifold runner control valve motor. Refer to Component Inspection.
Is the inspection result normal?
Check intermittent incident. Refer to Intermittent IncidentIntermittent Incident.
Replace intake manifold assembly. Refer to Removal and Installation.