Variant 1
Applies to: TMS3 (TMS)TMS6 (TMS)
What does Scania TMS fault code 685 mean?
Implausible values in the data from the AICC control unit.
What causes Scania DTC 685?
The data information from the AICC control unit contains implausible values.
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 685?
- 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)
Detection
Implausible values in the data from the AICC control unit.
Possible cause
The data information from the AICC control unit contains implausible values.
System reaction
A yellow warning indication is displayed.
Symptoms
- Adaptive cruise control not working. - The communication interface for speed control is not working.
How to fix
- Check the cable harness and harness-to-harness connector to the TMS control unit.
- Check the cable harness and harness-to-harness connector to the AICC control unit.
Variant 3
Applies to: TMS5 (TMS)
Detection
Implausible values in the data from the AICC control unit.
Possible cause
The data information from the AICC control unit contains implausible values.
System reaction
A yellow warning indication is displayed.
Symptoms
- Adaptive cruise control not working. - The communication interface for speed control is 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.