OBD Guide
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B1245

Short In The Rear Air Mix Control Motor Circuit

B1245 is an OBD-II diagnostic trouble code meaning: Short In The Rear Air Mix Control Motor Circuit. Common causes: wiring harness damage, mixture control motor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • Incorrect operation of the passive safety system
  • Error B1245 in diagnostic scanner memory

Causes

  • Wiring harness damage
  • Mixture control motor malfunction
  • Problems with the airbag control unit
  • Short circuit in the circuit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the condition of the connectors
  3. Check the operation of the mixture control motor
  4. Check the airbag control unit
  5. Replace damaged components

Related codes

B1240B1241B1242

FAQ

What does the B1245 code mean?

B1245 is an OBD-II diagnostic trouble code that indicates: Short In The Rear Air Mix Control Motor Circuit

What causes a B1245 error code?

The most common causes of B1245 include: Wiring harness damage; Mixture control motor malfunction; Problems with the airbag control unit; Short circuit in the circuit.

How do I fix a B1245 diagnostic trouble code?

To fix B1245: Check the integrity of the wiring harness. Check the condition of the connectors. Check the operation of the mixture control motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1245?

Do not drive — repair immediately

How much does it cost to fix B1245?

The estimated repair cost for B1245 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat