Acura B2981: Climate Control Unit Lost Communication with Navigation Unit

Is your scanner showing Acura B2981?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

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OVERVIEW

Severity

Medium

DIY Difficulty Level

Intermediate

Repair Cost

$75-$200

Can I Still Drive?

Yes (Short-term only)

What Does The Acura B2981 Code Mean?

This code indicates poor communication between the Climate Control Unit and the Navigation Unit.

Note: Do the self-diagnostic function with the HDS.

Below are some potential causes of this DTC:

Loose wires or poor connections on the navigation unit and climate control unit circuit
“Open” or “Short” in the wire(s) between the climate control unit and the navigation unit
Faulty Climate Control Unit
Faulty Navigation Unit

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

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

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