OBD Guide

B232D

Rain Sensor Optical Path 4 Performance

B232D is an OBD-II diagnostic trouble code meaning: Rain Sensor Optical Path 4 Performance. Common causes: rain sensor optical element is dirty, damage to the sensor wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Automatic wipers do not work correctly
  • Wipers do not turn on automatically when it rains
  • False alarms of wipers

Causes

  • Rain sensor optical element is dirty
  • Damage to the sensor wiring harness
  • Malfunction of the rain sensor itself
  • Incorrect sensor calibration
  • Incompatible or incorrectly installed windshield

How to Fix

  1. Clean the optical element of the rain sensor with a specialized cleaner
  2. Check the integrity of the wiring harness and sensor connection
  3. Calibrate the rain sensor using diagnostic equipment
  4. If necessary, replace the rain sensor or windshield

Related codes

FAQ

What does the B232D code mean?

B232D is an OBD-II diagnostic trouble code that indicates: Rain Sensor Optical Path 4 Performance

What causes a B232D error code?

The most common causes of B232D include: Rain sensor optical element is dirty; Damage to the sensor wiring harness; Malfunction of the rain sensor itself; Incorrect sensor calibration.

How do I fix a B232D diagnostic trouble code?

To fix B232D: Clean the optical element of the rain sensor with a specialized cleaner. Check the integrity of the wiring harness and sensor connection. Calibrate the rain sensor using diagnostic equipment. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B232D?

Limited driving only, diagnose soon

How much does it cost to fix B232D?

The estimated repair cost for B232D is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat