Scania ICL DTC 774 Communication with the gearbox management system (GMS)

ICL Instrument Cluster · Scania · 3 variants

Code 774 (decimal). Some diagnostic tools show it in hexadecimal as 0306.

In short

No CAN messages from the gearbox management system.

Variant 1

Applies to: ICL3 (ICL)

What does Scania ICL fault code 774 mean?

What causes Scania DTC 774?

How does the system react?

How to fix Scania ICL fault code 774?

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.

Variant 2

Applies to: ICL2

Variant 3

Applies to: ICL3

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

Code 774 in other Scania systems

Compare code 774 in every system →