Applies to: OPC4 (RET)OPC5 (RET2)
What does Scania RET fault code 8 mean?
Incorrect or unreliable data.
What causes Scania DTC 8?
Internal fault.
How does the system react?
Retarder braking is not possible. Yellow retarder warning is displayed in the instrument cluster.
How to fix Scania RET fault code 8?
- If updating of software in the control unit is carried out and fails, try repeating the updating.
- Otherwise clear all fault codes, switch off and re-start the vehicle.
- If the fault codes are still displayed, 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 8 in other Scania systems
- 8hex 0008 End position sensor and angle sensor, ACS
- 8hex 000008 Loudspeaker channel 3, short circuit to earth
- 8hex 0008 Loudspeaker, short circuit
- 8hex 0008 Control unit
- 8hex 0008 Communication with the lilac CAN bus
- 8hex 0008 Communication with the APS control unit
- 8hex 0008 Auxiliary heater
- 8hex 0008 Communication with the instrument cluster
- 8hex 0008 Switch on the operation unit
- 8hex 0008 Switch for sleep-in function
- 8hex 000008 Internal fault, missing UART message
- 8hex 0008 Control unit
- 8hex 0008 Control unit
- 8hex 0008 Rotational speed sensor
- 8hex 0008 Direction indicator rear left.