Scania TCC DTC 1066 TCC control unit, voltage supply

TCC TCC control unit · Scania

Code 1066 (decimal). Some diagnostic tools show it in hexadecimal as 042A.

In short

The TCC control unit has detected that the voltage supply has been below 5 V for at least 2 seconds.

Applies to: TCC3 (TCC)

What does Scania TCC fault code 1066 mean?

What causes Scania DTC 1066?

How does the system react?

What are the symptoms?

How to fix Scania TCC fault code 1066?

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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.

Code 1066 in other Scania systems