C1AA4
Yaw Rate Sensor Circuit
C1AA4 is an OBD-II diagnostic trouble code meaning: Yaw Rate Sensor Circuit. Common causes: broken or damaged sensor wiring, short circuit in the circuit. Estimated repair cost: $56–167.
Symptoms
- ESP/ABS indicator is on
- Disabling the stabilization system
- Unstable car behavior when cornering
- False alarms of security systems
Causes
- Broken or damaged sensor wiring
- Short circuit in the circuit
- Malfunction of the angular rate sensor
- Connector problems or contact corrosion
- ESP control unit malfunction
How to Fix
- Check the integrity of the sensor wiring and connectors
- Measure resistance and voltage at the sensor
- Check for corrosion or damaged contacts
- Scan the control unit for additional errors
- Replace the sensor or repair the circuit if necessary
- Test the system after repair
Related codes
FAQ
What does the C1AA4 code mean?
C1AA4 is an OBD-II diagnostic trouble code that indicates: Yaw Rate Sensor Circuit
What causes a C1AA4 error code?
The most common causes of C1AA4 include: Broken or damaged sensor wiring; Short circuit in the circuit; Malfunction of the angular rate sensor; Connector problems or contact corrosion.
How do I fix a C1AA4 diagnostic trouble code?
To fix C1AA4: Check the integrity of the sensor wiring and connectors. Measure resistance and voltage at the sensor. Check for corrosion or damaged contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1AA4?
Limited driving only, diagnose soon
How much does it cost to fix C1AA4?
The estimated repair cost for C1AA4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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