C1661
4WAS Front Lock Solenoid Valve
C1661 is an OBD-II diagnostic trouble code meaning: 4WAS Front Lock Solenoid Valve. Common causes: open or short circuit in solenoid control circuit, lockout solenoid valve malfunction. Estimated repair cost: $56–222.
Symptoms
- Inability to engage all-wheel drive
- Four-wheel drive indicator flashing
- Unstable operation of the all-wheel drive system
- Loss of power when switching modes
Causes
- Open or short circuit in solenoid control circuit
- Lockout solenoid valve malfunction
- Valve dirty or stuck
- Wiring Harness Problems
- 4WAS control unit malfunction
How to Fix
- Diagnostics of the solenoid control circuit for opens and shorts
- Check the resistance and functionality of the solenoid valve
- Clean or replace faulty solenoid
- Check connections and wiring harness for damage
- If necessary, replace the 4WAS control unit
Related codes
FAQ
What does the C1661 code mean?
C1661 is an OBD-II diagnostic trouble code that indicates: 4WAS Front Lock Solenoid Valve
What causes a C1661 error code?
The most common causes of C1661 include: Open or short circuit in solenoid control circuit; Lockout solenoid valve malfunction; Valve dirty or stuck; Wiring Harness Problems.
How do I fix a C1661 diagnostic trouble code?
To fix C1661: Diagnostics of the solenoid control circuit for opens and shorts. Check the resistance and functionality of the solenoid valve. Clean or replace faulty solenoid. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1661?
Limited driving only, diagnose soon
How much does it cost to fix C1661?
The estimated repair cost for C1661 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
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