OBD Guide
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B1451

Wiper Wash/Delay Switch Circuit Open

B1451 is an OBD-II diagnostic trouble code meaning: Wiper Wash/Delay Switch Circuit Open. Common causes: broken wiring harness, wiper switch malfunction. Estimated repair cost: $22–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Windshield wiper not working
  • Washer not working
  • Wipers do not switch between modes

Causes

  • Broken wiring harness
  • Wiper switch malfunction
  • Relay problems
  • Short circuit in the circuit

How to Fix

  1. Check the integrity of the wiring harness
  2. Test the wiper switch
  3. Check relays and fuses
  4. Replacing faulty components

Related codes

B1450B1452

FAQ

What does the B1451 code mean?

B1451 is an OBD-II diagnostic trouble code that indicates: Wiper Wash/Delay Switch Circuit Open

What causes a B1451 error code?

The most common causes of B1451 include: Broken wiring harness; Wiper switch malfunction; Relay problems; Short circuit in the circuit.

How do I fix a B1451 diagnostic trouble code?

To fix B1451: Check the integrity of the wiring harness. Test the wiper switch. Check relays and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1451?

Limited driving only, diagnose soon

How much does it cost to fix B1451?

The estimated repair cost for B1451 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat