OBD Guide

B231C

Rear Wiper Motor Control Circuit High

B231C is an OBD-II diagnostic trouble code meaning: Rear Wiper Motor Control Circuit High. Common causes: short circuit in control circuit, rear wiper motor malfunction. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Rear wiper doesn't work
  • The wiper works intermittently
  • The wiper turns on spontaneously

Causes

  • Short circuit in control circuit
  • Rear wiper motor malfunction
  • Wiring harness damage
  • Relay or fuse problems
  • Control unit malfunction

How to Fix

  1. Check the rear wiper fuse and relay
  2. Inspect the wiring harness for damage
  3. Check the operation of the wiper motor
  4. Test control circuit for short circuit
  5. If necessary, replace faulty components

Related codes

FAQ

What does the B231C code mean?

B231C is an OBD-II diagnostic trouble code that indicates: Rear Wiper Motor Control Circuit High

What causes a B231C error code?

The most common causes of B231C include: Short circuit in control circuit; Rear wiper motor malfunction; Wiring harness damage; Relay or fuse problems.

How do I fix a B231C diagnostic trouble code?

To fix B231C: Check the rear wiper fuse and relay. Inspect the wiring harness for damage. Check the operation of the wiper motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B231C?

Limited driving only, diagnose soon

How much does it cost to fix B231C?

The estimated repair cost for B231C is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat