Applies to: BCS1
What does Scania BCS fault code 4 mean?
Incorrect data.
What causes Scania DTC 4?
Internal fault in the control unit.
How does the system react?
Yellow warning lamp shown in the instrument cluster. Signals to the control unit are not reliable.
How to fix Scania BCS fault code 4?
Renew the 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 4 in other Scania systems
- 4hex 0004 Control unit 2, ACS
- 4hex 000004 Loudspeaker channel 2, short circuit to battery voltage
- 4hex 0004 Control unit
- 4hex 0004 Communication with the engine control unit
- 4hex 0004 Control motor in the water valve
- 4hex 0004 Communication with the engine control unit
- 4hex 0004 Activating the radio
- 4hex 000004 CAN communication, open circuit
- 4hex 0004 Control unit
- 4hex 0004 Control unit
- 4hex 0004 External instrument panel lighting
- 4hex 0004 Voltage supply
- 4hex 0004 Rotational speed sensor
- 4hex 0004 Dipped beam LH.