Scania GSC DTC 4129 High pressure solenoid valve

GSC GSC control unit · Scania

Code 4129 (decimal). Some diagnostic tools show it in hexadecimal as 1021.

In short

Incorrect level on current signal through the solenoid valve coil.

Applies to: GSC1 (FSC)

What does Scania GSC fault code 4129 mean?

What are the symptoms?

How to fix Scania GSC fault code 4129?

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

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