Acura B1227: Open in the Outside Air Temperature Sensor Circuit

Is your scanner showing Acura B1227?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Acura B1227: Open in the Outside Air Temperature Sensor Circuit

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$90-$200
Can I Still Drive?
:
Yes

What Does The Acura B1227 Code Mean?

Poor communication between the Outside Air Temperature Sensor and the Climate Control Unit. (“Open”) condition.

What Are The Potential Causes Of The Acura B1227 Code?

  • Perform the HVAC self-diagnostic function with the HDS
  • Loose wires or poor connections on the outside air temperature sensor circuit
  • “Open” circuit between the Climate Control Unit and the outside air temperature sensor
  • Fauty Outside Air Temperature Sensor
  • 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:

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 B1227 – Pages 52-54.

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