OBD Guide
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B19AA

Front Window Motor Output Circuit Failure

B19AA is an OBD-II diagnostic trouble code meaning: Front Window Motor Output Circuit Failure. Common causes: open or short circuit in wiring harness, window lift 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 window regulator does not work
  • Window regulator works intermittently
  • You hear clicking or other unusual noises when you try to lift the window

Causes

  • Open or short circuit in wiring harness
  • Window lift motor malfunction
  • Relay or fuse problems
  • Control unit malfunction

How to Fix

  1. Check the power window fuse and relay
  2. Inspect the wiring harness for damage
  3. Check the operation of the window lift motor
  4. Diagnose the control unit if necessary

Related codes

B19ABB19ACB19AD

FAQ

What does the B19AA code mean?

B19AA is an OBD-II diagnostic trouble code that indicates: Front Window Motor Output Circuit Failure

What causes a B19AA error code?

The most common causes of B19AA include: Open or short circuit in wiring harness; Window lift motor malfunction; Relay or fuse problems; Control unit malfunction.

How do I fix a B19AA diagnostic trouble code?

To fix B19AA: Check the power window fuse and relay. Inspect the wiring harness for damage. Check the operation of the window lift motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B19AA?

Limited driving only, diagnose soon

How much does it cost to fix B19AA?

The estimated repair cost for B19AA is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat