TMS 673 Scania Tachograph, fault in the vehicle speed value

TMS Transmission Management System · Scania · 2 variants

Code 673 (decimal). Some diagnostic tools show it in hexadecimal as 02A1.

In short

The electronic control unit indicates a fault in the vehicle speed reading.

Variant 1

Applies to: TMS3 (TMS)TMS5 (TMS)TMS6 (TMS)

What does Scania TMS fault code 673 mean?

What causes Scania DTC 673?

What are the symptoms?

How to fix Scania TMS fault code 673?

Read the full explanation with Premium

Causes, system reaction, symptoms and step-by-step repair instructions for every fault code are available to Premium members.

  • Full explanations of every code and brand
  • Causes, symptoms and repair steps
  • New brands and codes included

Yearly plan: pay 10 months, get 12. Cancel at any time.

Variant 2

Applies to: TMS4 (TMS)

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 673 in other Scania systems

Compare code 673 in every system →