OBD Guide

U0231

Lost Communication With Rain Sensing Module

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Automatic wipers do not turn on when it rains
  • Check Engine Light or Other Dashboard Warning Light
  • Even in heavy rain, the wipers do not respond automatically
  • Possible errors in other related systems

Causes

  • Open or short circuit in the rain sensor circuit
  • Rain sensor module malfunction
  • Connector problems or contact corrosion
  • Main control unit malfunction
  • Wiring Harness Problems

How to Fix

  1. Check the continuity of the rain sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the power supply and ground of the rain sensor
  4. Test or replace the rain sensor module
  5. Scan the system for other errors

Related codes

Error U0231 by Vehicle Brand