ON-BOARD DIAGNOSTIC
F2–157
F2
End Of Sie
2 INSPECT POOR CONNECTION OF VSC
SOLENOID VALVE CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
Yes Repair or replace suspected terminal, go to Step 7.
No Go to next step.
3 INSPECT VSC SOLENOID VALVE CIRCUIT FOR
SHORT TO GND
• Turn engine switch to OFF.
• Inspect continuity between following
harnesses:
— VSC solenoid valve terminal A and PCM
control relay terminal C.
— VSC solenoid valve terminal B and PCM
terminal 101.
• Is there continuity?
Yes Repair or replace harness for short to GND, go to Step 7.
No Go to next step.
4 INSPECT VSC SOLENOID VALVE
• Inspect VSC solenoid valve.
(See F2–42 VARIABLE SWIRL CONTROL
(VSC) SOLENOID VALVE INSPECTION)
• Is there any malfunction?
Yes Replace VSC solenoid valve, go to Step 7.
No Go to next step.
5 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
Yes Repair or replace suspected terminal, go to Step 7.
No Go to next step.
6 INSPECT VSC SOLENOID VALVE CIRCUIT FOR
OPEN
• Turn engine switch to OFF.
• Inspect continuity between following
harnesses:
— VSC solenoid valve terminal A and PCM
control relay terminal C.
— VSC solenoid valve terminal B and PCM
terminal 101.
• Is there continuity?
Yes Go to next step.
No Repair or replace harness for open, go to next step.
7 VERIFY TROUBLESHOOTING OF DTC P0661
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Start engine.
• Is same DTC present?
Yes Replace PCM, go to next step.
(See F2–64 PCM REMOVAL/INSTALLATION)
No Go to next step.
8 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F2–86 AFTER REPAIR PROCEDURE)
• Is there any DTC present?
Yes Go to applicable DTC inspection.
(See F2–87 DTC TABLE)
No Troubleshooting completed.
STEP INSPECTION ACTION
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