OBD Guide
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B1401

Driver Power Window One Touch Window Relay Circuit Short To Ground

B1401 is an OBD-II diagnostic trouble code meaning: Driver Power Window One Touch Window Relay Circuit Short To Ground. Common causes: short circuit in wiring harness, faulty relay. Estimated repair cost: $56–167.

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

Symptoms

  • The one-time lowering function of the driver's window does not work
  • The window goes down only when you hold the button
  • The backlight of the window control button is flashing

Causes

  • Short circuit in wiring harness
  • Faulty relay
  • Problems with the control unit
  • Oxidation of contacts

How to Fix

  1. Check wiring harness for damage
  2. Check the relay for functionality
  3. Check contacts for oxidation
  4. Replace relay or wiring harness if necessary

Related codes

B1402B1403B1404

FAQ

What does the B1401 code mean?

B1401 is an OBD-II diagnostic trouble code that indicates: Driver Power Window One Touch Window Relay Circuit Short To Ground

What causes a B1401 error code?

The most common causes of B1401 include: Short circuit in wiring harness; Faulty relay; Problems with the control unit; Oxidation of contacts.

How do I fix a B1401 diagnostic trouble code?

To fix B1401: Check wiring harness for damage. Check the relay for functionality. Check contacts for oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1401?

Limited driving only, diagnose soon

How much does it cost to fix B1401?

The estimated repair cost for B1401 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat