C0018
Left Rear Inlet Control
C0018 is an OBD-II diagnostic trouble code meaning: Left Rear Inlet Control. Common causes: open or short circuit in wiring harness, shock sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- The passive safety system fault indicator is on
- Deployment of airbags or pretensioners in unexpected situations
- Lack of response from the passive safety system in an accident
Causes
- Open or short circuit in wiring harness
- Shock sensor malfunction
- Damage to the restraint system control module
- Corrosion of contacts in connectors
How to Fix
- Diagnose the passive safety system using a scanner
- Check the integrity of the wiring harness and connectors
- Test shock sensors and pretensioners
- Replace faulty components
Related codes
Error C0018 by Vehicle Brand
FAQ
What does the C0018 code mean?
C0018 is an OBD-II diagnostic trouble code that indicates: Left Rear Inlet Control
What causes a C0018 error code?
The most common causes of C0018 include: Open or short circuit in wiring harness; Shock sensor malfunction; Damage to the restraint system control module; Corrosion of contacts in connectors.
How do I fix a C0018 diagnostic trouble code?
To fix C0018: Diagnose the passive safety system using a scanner. Check the integrity of the wiring harness and connectors. Test shock sensors and pretensioners. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0018?
Do not drive — repair immediately
How much does it cost to fix C0018?
The estimated repair cost for C0018 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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