Scania TMS DTC 2834 Freewheeling retarder, engaged position lost

TMS Transmission Management System · Scania · 2 variants

Code 2834 (decimal). Some diagnostic tools show it in hexadecimal as 0B12.

In short

Disengagement of freewheeling retarder not active but synchronised from the engaged position.

Variant 1

Applies to: TMS3 (TMS)

What does Scania TMS fault code 2834 mean?

What causes Scania DTC 2834?

How does the system react?

How to fix Scania TMS fault code 2834?

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Variant 2: Not valid for TMS4 - Disengagement of disengageable retarder not active but sync out of engaged position.

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.