Scania TMS DTC 1554 Position sensor for freewheeling retarder, short circuit or open circuit

TMS Transmission Management System · Scania · 2 variants

Code 1554 (decimal). Some diagnostic tools show it in hexadecimal as 0612.

In short

The control unit indicates that the position sensor voltage supply is short-circuited to earth or that there is an open circuit in the cable harness.

Variant 1

Applies to: TMS3 (TMS)

What does Scania TMS fault code 1554 mean?

What causes Scania DTC 1554?

How does the system react?

How to fix Scania TMS fault code 1554?

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
Get Premium – 7,50 € / month I already have an account

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

Variant 2: Not valid for TMS4 - Position sensor for UKR - Short circuit to ground or OL

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 1554 in other Scania systems