OBD Guide
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B1233

Open In The Driver Side Air Mix Control Motor Circuit

B1233 is an OBD-II diagnostic trouble code meaning: Open In The Driver Side Air Mix Control Motor Circuit. Common causes: break in the wiring harness, air mixture motor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of climate control
  • The set temperature is not maintained
  • Lack of response to changing temperature settings

Causes

  • Break in the wiring harness
  • Air mixture motor malfunction
  • Problems with the climate control unit
  • Poor contact in connectors

How to Fix

  1. Check the wiring harness for breaks
  2. Check the condition of the connectors
  3. Check the operation of the air mixture motor
  4. Check the climate control control unit

Related codes

B1231B1232B1234

FAQ

What does the B1233 code mean?

B1233 is an OBD-II diagnostic trouble code that indicates: Open In The Driver Side Air Mix Control Motor Circuit

What causes a B1233 error code?

The most common causes of B1233 include: Break in the wiring harness; Air mixture motor malfunction; Problems with the climate control unit; Poor contact in connectors.

How do I fix a B1233 diagnostic trouble code?

To fix B1233: Check the wiring harness for breaks. Check the condition of the connectors. Check the operation of the air mixture motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1233?

Limited driving only, diagnose soon

How much does it cost to fix B1233?

The estimated repair cost for B1233 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat