DTC P0662 [L3]

id0102008218a2

L3 Engine Models

DTC P0662

Variable intake-air system (VIS) control solenoid valve circuit high input

DETECTION CONDITION

• The PCM monitors the VIS control solenoid valve control signal at the PCM terminal 4R. If the PCM turns VIS control solenoid valve on but the voltage at PCM terminal 4R still remains high, the PCM determines that the VIS control solenoid valve circuit has a malfunction.

POSSIBLE CAUSE

• VIS control solenoid valve malfunction
• Short to power circuit between VIS control solenoid valve terminal A and PCM terminal 4R
• Shorted VIS control solenoid valve or PCM connector
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
PERFORM DTC CONFIRMATION PROCEDURE
• Perform the DTC CONFIRMATION PROCEDURE.
• Is the same DTC present?
Yes
Go to the next step.
No
Intermittent concern exists. Go to the INTERMITTENT CONCERN TROUBLESHOOTING procedure.
2
INSPECT VIS CONTROL SOLENOID VALVE CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch to the OFF position.
• Disconnect the VIS control solenoid valve connector.
• Inspect for poor connection (damaged/pulled-out pins, corrosion, etc.).
• Is there malfunction?
Yes
Repair or replace the terminal, then go to Step 6.
No
Go to the next step.
3
INSPECT VIS CONTROL SOLENOID VALVE MALFUNCTION
• Perform the VIS control solenoid valve inspection.
• Is the VIS solenoid valve normal?
Yes
Go to the next step.
No
Replace the VIS control solenoid valve, then go to Step 6.
4
INSPECT PCM FOR POOR CONNECTION
• Turn the ignition switch to the OFF position.
• Disconnect the PCM connector.
• Inspect for poor connection at terminal 4R. (damaged/pulled-out pins, corrosion, etc.).
• Is there malfunction?
Yes
Repair the terminal, then go to Step 6.
No
Go to the next step.
5
INSPECT VIS CONTROL SOLENOID VALVE CONTROL CIRCUIT SHORT TO POWER
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between VIS control solenoid valve terminal B (harness-side) and body ground.
• Is the voltage B+?
Yes
Repair or replace the wiring harness for an open circuit, then go to the next step.
No
Go to the next step.
6
VERIFY TROUBLESHOOTING OF DTC P0662 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Turn the ignition switch to the ON position (Engine off).
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Perform the KOEO/KOER self-test.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
• Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
No
Troubleshooting completed.