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1
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VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED
• Have the FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS (other related) been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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INSPECT VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR CONNECTOR AND TERMINALS
• Turn the ignition switch off.
• Disconnect the variable intake air shutter valve actuator connector.
• Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, then go to Step 9.
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No
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Go to the next step.
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4
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INSPECT VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR CIRCUIT FOR SHORT TO GROUND
• Variable intake air shutter valve actuator connector is disconnected.
• Inspect for continuity between the following terminals (wiring harness-side) and body ground:
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― Variable intake air shutter valve actuator terminal A
― Variable intake air shutter valve actuator terminal B
• Is there continuity?
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Yes
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If the short to ground circuit could be detected:
• Repair or replace the wiring harness for a possible short to ground.
If the short to ground circuit could not be detected:
• Replace the PCM (short to ground in PCM internal circuit).
Go to Step 9.
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No
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Go to the next step.
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5
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INSPECT PCM CONNECTOR AND TERMINALS
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, then go to Step 9.
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No
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Go to the next step.
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6
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INSPECT VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR CIRCUIT FOR SHORT TO POWER SUPPLY
• Variable intake air shutter valve actuator and PCM connectors are disconnected.
• Turn the ignition switch to the ON position (engine off).
• Measure the voltage between the following terminals (wiring harness-side) and body ground:
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― Variable intake air shutter valve actuator terminal A
― Variable intake air shutter valve actuator terminal B
• Is there any voltage?
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Yes
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Repair or replace the wiring harness for a possible short to power supply, then go to Step 9.
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No
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Go to the next step.
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7
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INSPECT VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR
• Turn the ignition switch off.
• Inspect the variable intake air shutter valve actuator.
• Is there any malfunction?
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Yes
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Replace the variable intake air shutter valve actuator, then go to Step 9.
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No
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Go to the next step.
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8
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INSPECT VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR CIRCUIT FOR OPEN CIRCUIT
• Variable intake air shutter valve actuator and PCM connectors are disconnected.
• Inspect for continuity between the following terminals (wiring harness-side):
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― Variable intake air shutter valve actuator terminal A and PCM terminal 2AJ
― Variable intake air shutter valve actuator terminal B and PCM terminal 2AI
• Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness for a possible open circuit, then go to the next step.
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9
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Perform the KOEO/KOER self test.
• Is the same DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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10
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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