DTC P0662 [MZR-CD (RF Turbo)]

BME010200600W05

DTC P0662

VSC solenoid valve circuit high input

DETECTION CONDITION

• PCM monitors input voltage from VSC solenoid valve while engine is running. If input voltage from VSC solenoid valve is above B+, PCM determines suction control valve circuit high input.

POSSIBLE CAUSE

• VSC solenoid valve malfunction
• Connector or terminal malfunction
• Short to power circuit in wiring between VSC solenoid valve terminal B and PCM terminal 101
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
PERFORM DTC CONFIRMATION PROCEDURE
• Perform "DTC Confirmation Procedure".
• Is same DTC present during KOEO or KOER self-test?
Yes
Go to next step.
No
Intermittent concern exists. Go to "Intermittent Concern Troubleshooting".
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 6.
No
Go to next step.
3
INSPECT VSC SOLENOID VALVE CIRCUIT FOR SHORT TO POWER
• Turn engine switch to ON (Engine switch OFF).
• Inspect voltage between VSC solenoid valve terminal B and body GND.
• Is voltage below 1.0 V?
Yes
Go to next step.
No
Repair or replace harness for short to power, go to Step 6.
4
INSPECT VSC SOLENOID VALVE
• Inspect VSC solenoid valve.
•  Is there any malfunction?
Yes
Replace VSC solenoid valve, go to Step 5.
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 next step.
No
Go to next step.
6
VERIFY TROUBLESHOOTING OF DTC P0662 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.
No
Go to next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.