Acura B1245: Short in the Rear Air Mix Control Motor Circuit

Is your scanner showing Acura B1245?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Acura B1245: Short in the Rear Air Mix Control Motor Circuit

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$90-$150
Can I Still Drive?
:
Yes (Short-term only)

What Does The Acura B1245 Code Mean?

This code indicates poor communication between the Rear Air Mix Control Motor and the Climate Control Unit – (“Short”) condition.

What Are The Potential Causes Of The Acura B1245 Code?

Below are some possible causes of this DTC:

  • Perform the HVAC self-diagnostic function with the HDS
  • “Short” in the wire(s) between the Climate Control Unit and the Rear Air Mix Control Motor
  • Faulty Rear Air Mix Control Motor
  • Faulty Climate Control Unit

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Acura Climate Control Unit
>>> ACURA HONDA 79160S0KJ01 Air Mix Control Motor Actuator - Genuine OEM - NOS

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

2007-2009 Acura MDX HVAC Climate Control Service Manual for B1245 – Pages 92-97.

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