OBD Guide

C12BA

ABS Regenerative Axle Pressure Sensor Circuit Short To Battery

C12BA is an OBD-II diagnostic trouble code meaning: ABS Regenerative Axle Pressure Sensor Circuit Short To Battery. Common causes: damage to the pressure sensor wiring harness, regenerative axle pressure sensor malfunction. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The ABS indicator on the dashboard is on
  • Deterioration in braking performance
  • Incorrect operation of the regenerative braking system (if any)

Causes

  • Damage to the pressure sensor wiring harness
  • Regenerative axle pressure sensor malfunction
  • Short circuit in the sensor power supply circuit
  • Problems with the ABS control unit

How to Fix

  1. Check the integrity of the pressure sensor wiring harness
  2. Check resistance and voltage at pressure sensor
  3. Replace pressure sensor if necessary
  4. Check and eliminate possible short circuits in the circuit
  5. Test the ABS system after repair

Related codes

FAQ

What does the C12BA code mean?

C12BA is an OBD-II diagnostic trouble code that indicates: ABS Regenerative Axle Pressure Sensor Circuit Short To Battery

What causes a C12BA error code?

The most common causes of C12BA include: Damage to the pressure sensor wiring harness; Regenerative axle pressure sensor malfunction; Short circuit in the sensor power supply circuit; Problems with the ABS control unit.

How do I fix a C12BA diagnostic trouble code?

To fix C12BA: Check the integrity of the pressure sensor wiring harness. Check resistance and voltage at pressure sensor. Replace pressure sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C12BA?

Limited driving only, diagnose soon

How much does it cost to fix C12BA?

The estimated repair cost for C12BA is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat