Applies to: OPC4 (RET)
What does Scania RET fault code 5 mean?
Incorrect or unreliable data.
What causes Scania DTC 5?
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 5?
- 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 5 in other Scania systems
- 5hex 0005 Red CAN bus
- 5hex 000005 Loudspeaker channel 2, short circuit to earth
- 5hex 0005 Control unit
- 5hex 0005 Communication with the CUV control unit
- 5hex 0005 Water valve
- 5hex 0005 Communication with the tachograph
- 5hex 0005 Switch on the operation unit
- 5hex 0005 Switch for starting the auxiliary heater
- 5hex 0005 Supply voltage too high.
- 5hex 000005 CAN bus, no communication
- 5hex 0005 Control unit
- 5hex 0005 INFO button
- 5hex 0005 Rotational speed sensor
- 5hex 0005 Direction indicator front right.