OBD Guide
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B1A33

Universal Garage Door Switch 2 Stuck

B1A33 is an OBD-II diagnostic trouble code meaning: Universal Garage Door Switch 2 Stuck. Common causes: switch stuck, open or short circuit in wiring harness. Estimated repair cost: $11–56.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$11–56 (est.)

Symptoms

  • Garage doors don't work
  • False alarms of the system
  • Error indication on the dashboard

Causes

  • Switch stuck
  • Open or short circuit in wiring harness
  • Control module malfunction
  • Contact corrosion

How to Fix

  1. Check the condition of the switch
  2. Inspect the wiring harness for damage
  3. Test the control module
  4. Replace the switch if necessary

Related codes

B1A32B1A34

FAQ

What does the B1A33 code mean?

B1A33 is an OBD-II diagnostic trouble code that indicates: Universal Garage Door Switch 2 Stuck

What causes a B1A33 error code?

The most common causes of B1A33 include: Switch stuck; Open or short circuit in wiring harness; Control module malfunction; Contact corrosion.

How do I fix a B1A33 diagnostic trouble code?

To fix B1A33: Check the condition of the switch. Inspect the wiring harness for damage. Test the control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1A33?

Do not drive — repair immediately

How much does it cost to fix B1A33?

The estimated repair cost for B1A33 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat