Scania GSC DTC 4448 Auxiliary heater relay on the voltage supply side, electrical fault

GSC GSC control unit · Scania

Code 4448 (decimal). Some diagnostic tools show it in hexadecimal as 1160.

In short

The control unit indicates an open circuit or short circuit on the pins which are connected to the auxiliary heater relay.

Applies to: GSC1 (FSC)

What does Scania GSC fault code 4448 mean?

What causes Scania DTC 4448?

What are the symptoms?

How to fix Scania GSC fault code 4448?

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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.