Scania TMS DTC 21030 Temperature sensor for coolant

TMS Transmission Management System · Scania · 2 variants

Code 21030 (decimal). Some diagnostic tools show it in hexadecimal as 5226.

In short

Implausible temperature response from the temperature sensor.

Variant 1

Applies to: TMS1

What does Scania TMS fault code 21030 mean?

What causes Scania DTC 21030?

How does the system react?

How to fix Scania TMS fault code 21030?

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Variant 2

Applies to: TMS2 (TMS)

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

Code 21030 in other Scania systems