U2018
Passenger Side Crash Sensor Communication Fault
U2018 is an OBD-II diagnostic trouble code meaning: Passenger Side Crash Sensor Communication Fault. Common causes: open or short circuit in the shock sensor circuit, malfunction of the shock sensor itself. Estimated repair cost: $56–167.
Symptoms
- The airbag light on the dashboard is on
- SRS may be disabled
- Possible errors in other security system sensors
- Additional SRS fault codes may be present when scanning
Causes
- Open or short circuit in the shock sensor circuit
- Malfunction of the shock sensor itself
- Problems with the airbag control module
- Corrosion or poor contact in connectors
- Damage to the wiring harness after an accident or repair
How to Fix
- Diagnose the SRS system using a scanner
- Check the integrity of the sensor circuit and connectors
- Test the shock sensor to ensure it meets specifications
- If necessary, replace the faulty sensor
- Repair only from an authorized dealer
Related codes
FAQ
What does the U2018 code mean?
U2018 is an OBD-II diagnostic trouble code that indicates: Passenger Side Crash Sensor Communication Fault
What causes a U2018 error code?
The most common causes of U2018 include: Open or short circuit in the shock sensor circuit; Malfunction of the shock sensor itself; Problems with the airbag control module; Corrosion or poor contact in connectors.
How do I fix a U2018 diagnostic trouble code?
To fix U2018: Diagnose the SRS system using a scanner. Check the integrity of the sensor circuit and connectors. Test the shock sensor to ensure it meets specifications. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U2018?
Do not drive — repair immediately
How much does it cost to fix U2018?
The estimated repair cost for U2018 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat