OBD Guide

C0235

Open Or Grounded Rear Speed Signal Circuit

C0235 is an OBD-II diagnostic trouble code meaning: Open Or Grounded Rear Speed Signal Circuit. Common causes: broken wires in the speed sensor circuit, short to ground. Estimated repair cost: $56–167.

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

Symptoms

  • ABS/ESP indicator is on
  • Disabling the stabilization system
  • Incorrect operation of the anti-lock braking system

Causes

  • Broken wires in the speed sensor circuit
  • Short to ground
  • Rear wheel speed sensor malfunction
  • Damage to the sensor connector
  • Problems with the ABS/ESP control unit

How to Fix

  1. Check the integrity of the wires and connectors of the rear wheel speed sensors
  2. Check the resistance of the speed sensors (must meet specification)
  3. Check for dirt or damage on the sensors
  4. Check the operation of the ABS/ESP control unit
  5. Replace faulty components if necessary

Related codes

Error C0235 by Vehicle Brand

FAQ

What does the C0235 code mean?

C0235 is an OBD-II diagnostic trouble code that indicates: Open Or Grounded Rear Speed Signal Circuit

What causes a C0235 error code?

The most common causes of C0235 include: Broken wires in the speed sensor circuit; Short to ground; Rear wheel speed sensor malfunction; Damage to the sensor connector.

How do I fix a C0235 diagnostic trouble code?

To fix C0235: Check the integrity of the wires and connectors of the rear wheel speed sensors. Check the resistance of the speed sensors (must meet specification). Check for dirt or damage on the sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0235?

Limited driving only, diagnose soon

How much does it cost to fix C0235?

The estimated repair cost for C0235 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat