Scania ZF DTC 6623 Oil temperature in the gearbox sump

ZF ZF gearbox · Scania

Code 6623 (decimal). Some diagnostic tools show it in hexadecimal as 19DF.

In short

Incorrect signal from the oil temperature sensor in the gearbox sump.

Applies to: ZF1

What does Scania ZF fault code 6623 mean?

What causes Scania DTC 6623?

How does the system react?

How to fix Scania ZF fault code 6623?

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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.