Variant 1
Applies to: TMS3 (TMS)TMS6 (TMS)
What does Scania TMS fault code 683 mean?
Message about adaptive cruise control missing.
What causes Scania DTC 683?
- Fault in the cable harness or harness-to-component connectors to the GMS control unit or the AICC control unit. - Message from the AICC control unit is not transmitted.
How does the system react?
A yellow warning indication is displayed.
What are the symptoms?
- Adaptive cruise control not working. - The communication interface for speed control is not working.
How to fix Scania TMS fault code 683?
- Check the cable harness and harness-to-harness connector to the GMS control unit.
- Check the cable harness and harness-to-harness connector to the AICC control unit.
Variant 2
Applies to: TMS4 (TMS)TMS5 (TMS)
Detection
Message about adaptive cruise control missing.
Possible cause
- Fault in the cable harness or harness-to-harness connector to the TMS control unit or the AICC control unit. - Message from the AICC control unit is not transmitted.
System reaction
A yellow warning indication is displayed.
Symptoms
Adaptive cruise control not working.
How to fix
- Check the TMS control unit cable harness and harness-to-harness connector.
- Check the cable harness and harness-to-harness connector to the AICC control unit.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.