Scania MBS DTC 771 Sensor for battery hatch, open circuit

MBS MBS control unit · Scania

Code 771 (decimal). Some diagnostic tools show it in hexadecimal as 0303.

In short

The voltage supply to the control unit input for battery hatch sensor is 12 V.

Applies to: MBS3 (MBS)

What does Scania MBS fault code 771 mean?

What causes Scania DTC 771?

How does the system react?

What are the symptoms?

How to fix Scania MBS fault code 771?

Read the full explanation with Premium

Causes, system reaction, symptoms and step-by-step repair instructions for every fault code are available to Premium members.

  • Full explanations of every code and brand
  • Causes, symptoms and repair steps
  • New brands and codes included

Yearly plan: pay 10 months, get 12. Cancel at any time.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 771 in other Scania systems

Compare code 771 in every system →