C128A
ABS Boost Pressure Sensor Offset Error
C128A is an OBD-II diagnostic trouble code meaning: ABS Boost Pressure Sensor Offset Error. Common causes: pressure sensor malfunction, damage to the sensor wiring harness. Estimated repair cost: $56–167.
Symptoms
- The ABS indicator on the dashboard is on
- Reduced braking performance
- Activation of the ESP system for no apparent reason
Causes
- Pressure sensor malfunction
- Damage to the sensor wiring harness
- Sensor connection problems
- ABS module malfunction
How to Fix
- Check the connection of the pressure sensor
- Check the integrity of the wiring harness
- Test the pressure sensor with a multimeter
- Replace pressure sensor if necessary
- Check the ABS module for errors
Related codes
FAQ
What does the C128A code mean?
C128A is an OBD-II diagnostic trouble code that indicates: ABS Boost Pressure Sensor Offset Error
What causes a C128A error code?
The most common causes of C128A include: Pressure sensor malfunction; Damage to the sensor wiring harness; Sensor connection problems; ABS module malfunction.
How do I fix a C128A diagnostic trouble code?
To fix C128A: Check the connection of the pressure sensor. Check the integrity of the wiring harness. Test the pressure sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C128A?
Limited driving only, diagnose soon
How much does it cost to fix C128A?
The estimated repair cost for C128A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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