OBD Guide

C1235

Right Rear Wheel Speed Sensor Input Signal Missing

C1235 is an OBD-II diagnostic trouble code meaning: Right Rear Wheel Speed Sensor Input Signal Missing. Common causes: wheel speed sensor malfunction, broken or damaged wiring harness. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • ABS/ESP indicator is on
  • Disabling the ABS system
  • Unstable operation of the stabilization system
  • Error on the dashboard

Causes

  • Wheel speed sensor malfunction
  • Broken or damaged wiring harness
  • Poor contact in the sensor connector
  • Damage to the toothed ring on the hub
  • ABS ECU malfunction

How to Fix

  1. Check the condition of the sensor and its connection
  2. Test the wiring harness for opens or shorts.
  3. Clean sensor connector contacts
  4. Check the condition of the gear ring on the hub
  5. If necessary, replace the sensor or wires

Related codes

FAQ

What does the C1235 code mean?

C1235 is an OBD-II diagnostic trouble code that indicates: Right Rear Wheel Speed Sensor Input Signal Missing

What causes a C1235 error code?

The most common causes of C1235 include: Wheel speed sensor malfunction; Broken or damaged wiring harness; Poor contact in the sensor connector; Damage to the toothed ring on the hub.

How do I fix a C1235 diagnostic trouble code?

To fix C1235: Check the condition of the sensor and its connection. Test the wiring harness for opens or shorts.. Clean sensor connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1235?

Limited driving only, diagnose soon

How much does it cost to fix C1235?

The estimated repair cost for C1235 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat