Audi P1626: Data-Bus Drive Train Missing Message From Transmission Control Module

Is your scanner showing Audi P1626?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Audi P1626: Data-Bus Drive Train Missing Message From Transmission Control Module

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$75-$150
Can I Still Drive?
:
Yes

What Does The Audi P1626 Code Mean?

After engine has been started. Time since start->1 sec. Battery voltage->10.54 V. Initialize failure and/or no acknowledge.

What Are The Potential Causes Of The Audi P1626 Code?

  • Fuse
  • Faulty CAN-Bus Terminal Resistance, TCM to ECM
  • Wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
  • Wiring connection for damage, corrosion, loose or broken terminals.
  • Transmission Control Module (TCM)
  • Engine Control Module (ECM)

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
>>> Audi TCM
>>> Audi Engine Control Module

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

Reference Sources

Audi A4 Avant 95-01 Service Repair Manual, page 60.

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