Scania CMDA DTC 8771852 Positive contactor, soon worn out

CMDA CMDA control unit · Scania

Code 8771852 (decimal). Some diagnostic tools show it in hexadecimal as 85D90C.

In short

The turn-on counter for the positive contactor is above or equal to the warning limit value for a worn-out contactor but less than the maximum number of turn-offs and turn-ons.

Applies to: CMDA2 (CMD)

What does Scania CMDA fault code 8771852 mean?

What causes Scania DTC 8771852?

How to fix Scania CMDA fault code 8771852?

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.