Applies to: OPC4 (RET)OPC5 (RET2)
What does Scania RET fault code 5010 mean?
The control unit has a supply voltage that is too low.
What causes Scania DTC 5010?
The 30 voltage was too low when the engine was running.
How does the system react?
Retarder braking may not be possible and a yellow retarder warning is displayed in the instrument cluster.
How to fix Scania RET fault code 5010?
Check alternator, battery, harness-to-component connector and cable harness.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.