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Diagnosis Procedure
1.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT-I
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connectors.
  3. Turn ignition switch ON.
  4. Check the voltage between ECM harness connector terminals.
    ECMVoltage
    (Approx.)
    +−
    ConnectorTerminalConnectorTerminal
    F515E16160Battery voltage
Is inspection result normal?
.
.
 
2.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR POWER SUPPLY CIRCUIT-II
Check the voltage between ECM harness connector and ground.
+−Voltage
(Approx.)
ECM
ConnectorTerminal
F515GroundBattery voltage
Is inspection result normal?
.
Perform the trouble diagnosis for power supply circuit.
 
3.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE INPUT SIGNAL CIRCUIT
  1. Turn ignition switch OFF.
  2. Disconnect intake manifold runner control valve motor harness connector.
  3. Check the continuity between ECM harness connector and intake manifold runner control valve motor harness connector.
    +−Continuity
    Intake manifold runner control valve motorECM
    ConnectorTerminalConnectorTerminal
    F191F52121existed
    122Not existed
    2121Not existed
    122existed
  4. Also check harness for short to ground.
Is inspection result normal?
.
Repair or replace error-detected parts.
 
4.CHECK ECM GROUND CIRCUIT
  1. Turn ignition switch OFF.
  2. Check the continuity between ECM harness connector and the ground.
    ECMGroundContinuity
    ConnectorTerminal
    F514GroundExisted
    E16156
    157
    160
Is inspection result normal?
Check intermittent incident. Refer to Intermittent IncidentIntermittent Incident.
Repair or replace error-detected parts.
 
5.CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE
Check Intake manifold runner control valve. Refer to DTC Description.
Is inspection result normal?
Check intermittent incident. Refer to Intermittent IncidentIntermittent Incident.
Replace error-detected parts.