C0120
Front Inlet Valve Left
C0120 is an OBD-II diagnostic trouble code meaning: Front Inlet Valve Left. Common causes: open or short circuit in wiring harness, malfunction of the solenoid valve (solenoid). Estimated repair cost: $56–167.
Symptoms
- The passive safety system fault indicator is on
- Problems with the operation of the seat belt pretensioner
- Airbag malfunction
Causes
- Open or short circuit in wiring harness
- Malfunction of the solenoid valve (solenoid)
- Damage to the intake valve itself
- Problems with the restraint system control unit
How to Fix
- Check wiring harness for damage
- Check resistance and voltage at solenoid
- Replace faulty intake valve or solenoid
- Reset the error and check the system
Related codes
Error C0120 by Vehicle Brand
FAQ
What does the C0120 code mean?
C0120 is an OBD-II diagnostic trouble code that indicates: Front Inlet Valve Left
What causes a C0120 error code?
The most common causes of C0120 include: Open or short circuit in wiring harness; Malfunction of the solenoid valve (solenoid); Damage to the intake valve itself; Problems with the restraint system control unit.
How do I fix a C0120 diagnostic trouble code?
To fix C0120: Check wiring harness for damage. Check resistance and voltage at solenoid. Replace faulty intake valve or solenoid. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0120?
Do not drive — repair immediately
How much does it cost to fix C0120?
The estimated repair cost for C0120 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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