Scania MCC DTC 40985 LIN communication

MCC MCC control unit · Scania

Code 40985 (decimal). Some diagnostic tools show it in hexadecimal as A019.

In short

Fault in LIN communication with actuator for air distribution between panel and floor.

Applies to: MCC3

What does Scania MCC fault code 40985 mean?

Fault in LIN communication with actuator for air distribution between panel and floor.

What causes Scania DTC 40985?

- Fault in the cable harness between the control unit and actuator for air distribution between panel and floor. - Fault in actuator for air distribution between panel and floor.

What are the symptoms?

The actuator cannot control the air distribution damper. This can affect the cab climate. Components on the LIN bus are connected to the control unit in series via harness-to-harness connectors. A fault in components connected to the cable harness earlier can therefore affect the functionality of components connected later.

How to fix Scania MCC fault code 40985?

  1. Check the cable harness between the control unit and the actuator for air distribution between panel and floor.
  2. If no fault is found, replace the actuator.

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

Code 40985 in other Scania systems

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