Acura P1672: A/T (TCM) FI Data Line Circuit Malfunction

Is your scanner showing Acura P1672?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Acura P1672: A/T (TCM) FI Data Line Circuit Malfunction

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$75-$200
Can I Still Drive?
:
Yes

What Does The Acura P1672 Code Mean?

Engine started, and the PCM detected an unexpected (intermittent) interruption of the TCM FI Data Line signal during the CCM test.

What Are The Potential Causes Of The Acura P1672 Code?

  • A/T FI data line is open (intermittent fault)
  • A/T FI data line is shorted to ground (intermittent fault)
  • A/T FI data line is shorted to VREF or power (intermittent fault)
  • TCM or PCM has failed

Recommended Parts

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

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Acura Engine Control Module

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

Reference Sources

Acura P1672, DTCDECODE.

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