Scania PCS DTC 977 CAN Sequence Error in message TSC1_10_T_REX from TRA

PCS PCS control unit · Scania

Code 977 (decimal). Some diagnostic tools show it in hexadecimal as 0003D1.

In short

Sequence number check on message reception.

Applies to: PCS1 (PCS)

What does Scania PCS fault code 977 mean?

What causes Scania DTC 977?

What are the symptoms?

How to fix Scania PCS fault code 977?

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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.