Scania COO DTC 1038 Gearbox signal missing

COO Coordinator · Scania · 3 variants

Code 1038 (decimal). Some diagnostic tools show it in hexadecimal as 040E.

In short

Signals from the reverse gear TMS control unit and the propeller shaft rotation direction are incorrect or have corrupt status.

Variant 1: Error message about signals from the TMS control unit

Applies to: COO10 (COO)

What does Scania COO fault code 1038 mean?

What causes Scania DTC 1038?

How does the system react?

How to fix Scania COO fault code 1038?

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Variant 2: Error message about signals from the TMS control unit

Applies to: COO11 (COO)

Variant 3

Applies to: COO8 (COO)

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

Code 1038 in other Scania systems

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