OBD Guide
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C128F

ABS Regenerative Axle Pressure Sensor Raw Offset Error

C128F is an OBD-II diagnostic trouble code meaning: ABS Regenerative Axle Pressure Sensor Raw Offset Error. Common causes: pressure sensor malfunction, open or shorted wiring harness. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • ABS/ESP indicator lights up
  • Reduced efficiency of regenerative braking
  • Uneven braking
  • Activating the emergency brake system

Causes

  • Pressure sensor malfunction
  • Open or shorted wiring harness
  • Problems with the sensor connector contacts
  • Software error in ABS module
  • Mechanical damage to the brake circuit

How to Fix

  1. Diagnose the ABS system using a scanner
  2. Visually inspect the pressure sensor and its connections
  3. Check the integrity and resistance of the wiring harness
  4. If necessary, replace the pressure sensor
  5. Reflash the ABS module if software errors are detected

Related codes

C1280C1281C1285

FAQ

What does the C128F code mean?

C128F is an OBD-II diagnostic trouble code that indicates: ABS Regenerative Axle Pressure Sensor Raw Offset Error

What causes a C128F error code?

The most common causes of C128F include: Pressure sensor malfunction; Open or shorted wiring harness; Problems with the sensor connector contacts; Software error in ABS module.

How do I fix a C128F diagnostic trouble code?

To fix C128F: Diagnose the ABS system using a scanner. Visually inspect the pressure sensor and its connections. Check the integrity and resistance of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C128F?

Limited driving only, diagnose soon

How much does it cost to fix C128F?

The estimated repair cost for C128F is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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