Fault code: 43585 SCANIA

Error identification:

Incorrect or unreliable data.

Cause:

Internal fault in the control unit.

Notes:

As a result of the fault, the SCR system is deactivated and injection of reductant stops.

The SCR system communication related fault codes 42256, 43345 and 43361 can be generated when the SCR system is deactivated. Carry out troubleshooting using this fault code in the first instance.

When the SCR system is deactivated, communication between the SCR control unit and the engine control unit may be interrupted. To ensure correct fault code handling, the control units must be able to communicate with each other. Try to re-establish communication by switching off the ignition voltage and then waiting 90 seconds before switching it on again.

Action:

Renew the SCR control unit. This means that the main unit must be renewed.