Scania TMS DTC 521 The clutch pedal position cannot be read

TMS Transmission Management System · Scania · 2 variants

Code 521 (decimal). Some diagnostic tools show it in hexadecimal as 0209.

In short

The electronic control unit indicates that the position of the clutch pedal cannot be read.

Variant 1

Applies to: TMS3 (TMS)TMS5 (TMS)

What does Scania TMS fault code 521 mean?

What causes Scania DTC 521?

How does the system react?

How to fix Scania TMS fault code 521?

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Variant 2: Not valid for TMS4 - (Clutch pedal 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.

Code 521 in other Scania systems

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