TMS 2824 Scania Freewheeling retarder does not disengage when starting

TMS Transmission Management System · Scania · 2 variants

Code 2824 (decimal). Some diagnostic tools show it in hexadecimal as 0B08.

In short

The freewheeling retarder position sensor has not confirmed that the retarder is in the disengaged position within 5 seconds of starting the vehicle.

Variant 1

Applies to: TMS3 (TMS)

What does Scania TMS fault code 2824 mean?

What causes Scania DTC 2824?

How does the system react?

How to fix Scania TMS fault code 2824?

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Variant 2: Not valid for TMS4 - Disengageable retarder's disengaged status cannot be detected when retarder control system is started

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.