OBD Guide

B1D38

Front Wiper Motor

B1D38 is an OBD-II diagnostic trouble code meaning: Front Wiper Motor. Common causes: open or short circuit in wiring harness, wiper motor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Front wipers don't work
  • Intermittent wiper operation
  • Wipers only work at one speed
  • Brushes get stuck in one position

Causes

  • Open or short circuit in wiring harness
  • Wiper motor malfunction
  • Relay or fuse problems
  • Corrosion of contacts or connectors
  • Control module failure

How to Fix

  1. Check fuses and relays
  2. Inspect the wiring harness for damage
  3. Check the voltage at the wiper motor
  4. Replace wiper motor if necessary
  5. Scan the control module for errors

Related codes

FAQ

What does the B1D38 code mean?

B1D38 is an OBD-II diagnostic trouble code that indicates: Front Wiper Motor

What causes a B1D38 error code?

The most common causes of B1D38 include: Open or short circuit in wiring harness; Wiper motor malfunction; Relay or fuse problems; Corrosion of contacts or connectors.

How do I fix a B1D38 diagnostic trouble code?

To fix B1D38: Check fuses and relays. Inspect the wiring harness for damage. Check the voltage at the wiper motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D38?

Limited driving only, diagnose soon

How much does it cost to fix B1D38?

The estimated repair cost for B1D38 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat