DTC P0661 [L3]

id0102008217a2

L3 Engine Models

DTC P0661

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

DETECTION CONDITION

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

POSSIBLE CAUSE

• VIS control solenoid valve malfunction
• Open circuit in wiring harness between the main relay and the VIS control solenoid valve terminal B
• Open circuit in wiring harness between the VIS control solenoid valve terminal A and PCM terminal 4R
• Short to ground in wiring harness between the VIS control solenoid valve terminal A and PCM terminal 4R
• Connector or terminal malfunction
• 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 8.
No
Go to the next step.
3
INSPECT VIS CONTROL SOLENOID VALVE MALFUNCTION
• Perform the VIS control solenoid valve inspection.
• Is the VIS control solenoid valve normal?
Yes
Go to the next step.
No
Replace the VIS control solenoid valve, then go to Step 8.
4
INSPECT VIS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT for an open circuit CIRCUIT
• Turn the ignition switch to ON position (Engine off).
• Measure the voltage between VIS control solenoid valve terminal B (harness-side) and body ground.
• Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace the wiring harness for an open circuit, then go to Step 8.
5
INSPECT VIS CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND
• Inspect for continuity between VIS control solenoid valve terminal A (harness-side) and body ground.
• Is there continuity?
Yes
Repair or replace the wiring harness for a short to ground, then go to Step 8.
No
Go to the next step.
6
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• 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 8.
No
Go to the next step.
7
INSPECT VIS CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between VIS control solenoid valve terminal B (harness-side) and PCM terminal 4R (harness-side).
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for an open circuit circuit, then go to the next step.
8
VERIFY TROUBLESHOOTING OF DTC P0661 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.
9
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
• Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
No
Troubleshooting completed.