Scania ACC DTC 40994 Fan motor M3

ACC Automatic Climate Control · Scania

Code 40994 (decimal). Some diagnostic tools show it in hexadecimal as A022.

In short

Fault in the signal to the fan motor.

Applies to: ACC3

What does Scania ACC fault code 40994 mean?

What causes Scania DTC 40994?

How does the system react?

What are the symptoms?

How to fix Scania ACC fault code 40994?

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 40994 in other Scania systems

Compare code 40994 in every system →