C0126
Rear Inlet Valve Right
C0126 is an OBD-II diagnostic trouble code meaning: Rear Inlet Valve Right. Common causes: open or short circuit in wiring harness, malfunction of the right rear intake valve. Estimated repair cost: $56–167.
Symptoms
- The SRS indicator on the dashboard is on
- The passive safety system may not work in an accident.
- The error is stored in the ECU memory
Causes
- Open or short circuit in wiring harness
- Malfunction of the right rear intake valve
- Problems with the SRS ECU
- Corrosion of contacts or connectors
How to Fix
- Check valve resistance (must meet specification)
- Inspect the wiring harness for damage
- Check contacts and connectors for corrosion
- Test the SRS ECU
- Replace faulty valve or wiring harness if necessary
Related codes
Error C0126 by Vehicle Brand
FAQ
What does the C0126 code mean?
C0126 is an OBD-II diagnostic trouble code that indicates: Rear Inlet Valve Right
What causes a C0126 error code?
The most common causes of C0126 include: Open or short circuit in wiring harness; Malfunction of the right rear intake valve; Problems with the SRS ECU; Corrosion of contacts or connectors.
How do I fix a C0126 diagnostic trouble code?
To fix C0126: Check valve resistance (must meet specification). Inspect the wiring harness for damage. Check contacts and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0126?
Do not drive — repair immediately
How much does it cost to fix C0126?
The estimated repair cost for C0126 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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