Applies to: DDU1 (DDU)
What does Scania DDU fault code 804 mean?
No CAN message recieved from the external amplifier (AMP1) . Only stored when ignition is ON.
What causes Scania DTC 804?
1. The AMP-system is not connected to the CANbus 2. Trouble with gateway internally in DDU
How does the system react?
NA
What are the symptoms?
1.Speakers on external amplifier might not work. 2.Microphone on external amplifier might not work.
How to fix Scania DDU fault code 804?
- 1.
- Check the harness 2.
- Replace the AMP.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.
Code 804 in other Scania systems
- 804hex 0324 Interrupted electric power supply
- 804hex 0324 Propulsion battery level monitor T181 is defective
- 804hex 0324 Solenoid valve for differential lock, 2nd rear axle
- 804hex 0324 Voltage supply, short circuit to earth
- 804hex 0324 Micro switch front door leaf, door lock, open circuit
- 804hex 0324 Refrigerant system passenger area, pressure too high