Scania DCU DTC 788 Door control unit, too low a supply voltage V1, V2 and V3

DCU DCU control unit · Scania

Code 788 (decimal). Some diagnostic tools show it in hexadecimal as 0314.

In short

Too low a voltage from power supply pin groups V1, V2, V3 and output driver stage (below 16 V).

Applies to: DCU3 (DCUA)DCU3 (DCUF)DCU3 (DCUM)DCU3 (DCUR)

What does Scania DCU fault code 788 mean?

What causes Scania DTC 788?

What are the symptoms?

How to fix Scania DCU fault code 788?

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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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