OBD Guide
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B1045

Left Rear Door Audio Output 3 Circuit

B1045 is an OBD-II diagnostic trouble code meaning: Left Rear Door Audio Output 3 Circuit. Common causes: broken wire, speaker malfunction. Estimated repair cost: $11–56.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • No sound from left rear door
  • Sound distortion
  • Intermittent sound loss

Causes

  • Broken wire
  • Speaker malfunction
  • Poor contact in the connector
  • Head unit malfunction

How to Fix

  1. Check the integrity of the wires
  2. Check the speaker for functionality
  3. Clean contacts in connectors
  4. Check the head unit

Related codes

B1046B1047B1048

FAQ

What does the B1045 code mean?

B1045 is an OBD-II diagnostic trouble code that indicates: Left Rear Door Audio Output 3 Circuit

What causes a B1045 error code?

The most common causes of B1045 include: Broken wire; Speaker malfunction; Poor contact in the connector; Head unit malfunction.

How do I fix a B1045 diagnostic trouble code?

To fix B1045: Check the integrity of the wires. Check the speaker for functionality. Clean contacts in connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1045?

Limited driving only, diagnose soon

How much does it cost to fix B1045?

The estimated repair cost for B1045 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat