Applies to: ACC1
What does Scania ACC fault code 3 mean?
The recirculation motor does not work.
What causes Scania DTC 3?
The output signal from the recirculation motor is missing, or has been exposed to undesirable positive voltage, or is short circuited due to undesirable grounding, or the circuit is open. Damaged wiring or harness-to-component connectors for the recirculation motor. Defective recirculation motor. The recirculation flap is stuck. Something has jammed in the recirculation flap.
How does the system react?
The driver can detect the fault, as the status of the LED on the panel does not change between on/off when the switch is pressed.
How to fix Scania ACC fault code 3?
- Check the recirculation motor using SDP3.
- For further information, go to the Check tab and search for Fault code information.
- Check the wiring and the harness-to-component connector.
- Check the recirculation flaps to make sure there is nothing stuck in the openings.
- Check the mechanical end stop.
- If necessary, renew the recirculation motor.
- Clear the fault codes in the ACC control unit.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.
Code 3 in other Scania systems
- 3hex 0003 Control unit 1, ACS
- 3hex 000003 Loudspeaker channel 1, break in circuit
- 3hex 0003 Control unit
- 3hex 0003 Voltage supply
- 3hex 0003 Communication with the coordinator
- 3hex 0003 Radio controls
- 3hex 0003 Activating the radio
- 3hex 0003 Factory settings are incorrect.
- 3hex 000003 Supply voltage, too low
- 3hex 0003 Control unit
- 3hex 0003 Control unit
- 3hex 0003 External instrument panel lighting
- 3hex 0003 Voltage supply
- 3hex 0003 Rotational speed sensor
- 3hex 0003 Dipped beam RH.