Variant 1: Engine control unit, configuration error
Applies to: COO10 (COO)
What does Scania COO fault code 701 mean?
The engine control unit does not support the speed request from cruise control.
What causes Scania DTC 701?
- The engine control unit may be misconfigured or not programmed. - An engine control unit with software that does not support the speed request is installed. - The coordinator may be misconfigured or not programmed.
How does the system react?
Yellow warning indication of a fault in the cruise control is displayed.
What are the symptoms?
- The adaptive cruise control cannot be activated. - Cruise control cannot be activated.
How to fix Scania COO fault code 701?
- Spare part program the coordinator.
- Spare parts program the engine control unit.
- Check whether the engine control unit has generated any fault codes.
- Check whether new software is available for the engine control unit.
- Renew the engine control unit if the software does not support the cruise control interface.
Variant 2: Engine control unit, configuration error
Applies to: COO11 (COO)
Detection
The engine control unit does not support the speed request from cruise control.
Possible cause
- The engine control unit may be misconfigured or not programmed. - An engine control unit with software that does not support the speed request is installed. - The coordinator may be misconfigured or not programmed.
Symptoms
- The adaptive cruise control cannot be activated. - Cruise control cannot be activated.
How to fix
- Spare part program the coordinator.
- Spare parts program the engine control unit.
- Check whether the engine control unit has generated any fault codes.
- Check whether new software is available for the engine control unit.
- Renew the engine control unit if the software does not support the cruise control interface.
Variant 3
Applies to: COO8 (COO)
Detection
The engine control unit does not support the speed request from cruise control.
Possible cause
- The engine control unit may be misconfigured or not programmed. - An engine control unit with software that does not support the speed request is installed. - The coordinator may be misconfigured or not programmed.
Symptoms
- The adaptive cruise control cannot be activated. - Cruise control cannot be activated.
How to fix
- Spare parts program the coordinator.
- Spare parts program the engine control unit.
- Check whether the engine control unit has generated any fault codes.
- Check whether new software is available for the engine control unit.
- Renew the engine control unit if the software does not support the cruise control interface.
Variant 4
Applies to: COO9 (COO)
Detection
The engine control unit does not support the speed request from cruise control.
Possible cause
The fault may be due to: - The engine control unit may be incorrectly set or not programmed. - An engine control unit with software which does not support the speed request is installed. - The coordinator may be incorrectly set or not programmed.
Symptoms
- The adaptive cruise control cannot be activated. - Cruise control cannot be activated.
How to fix
- Spare parts program the coordinator.
- Spare parts program the engine control unit.
- Check whether the engine control unit has generated any fault codes.
- Check whether new software is available for the engine control unit.
- Renew the engine control unit if the software does not support the cruise control interface.
Variant 5
Applies to: COO7
Detection
The engine control unit does not support requests for vehicle speed data.
Possible cause
The fault may be due to: - The engine control unit may be incorrectly set or not programmed. - The engine control unit may have software that is not compatible with the vehicle. This may be due to the engine control unit having been renewed and originating from a different vehicle. - The coordinator may be incorrectly set or not programmed.
System reaction
If adaptive cruise control is selected when the fault code is active, a warning will be displayed in the instrument cluster. Adaptive cruise control will not work. Cruise control will not work.
How to fix
- Check the programming of the coordinator.
- Carry out spare parts programming of the coordinator if necessary.
- Check the programming of the engine control unit.
- Carry out spare parts programming of the engine control unit if necessary.
- Check whether the engine control unit has generated any fault codes.
- Check the part number of the engine control unit.
- Renew the engine control unit if the software does not support the cruise control interface.
Variant 6
Applies to: COO8
Detection
The engine control unit does not support the speed request from cruise control.
Possible cause
The fault may be due to: - The engine control unit may be incorrectly set or not programmed. - An engine control unit with software which does not support the speed request is installed. - The coordinator may be incorrectly set or not programmed.
System reaction
- The adaptive cruise control cannot be activated. - Cruise control cannot be activated. - If adaptive cruise control is selected when the fault code is active, a warning will be displayed in the instrument cluster.
How to fix
- Spare parts program the coordinator.
- Spare parts program the engine control unit.
- Check whether the engine control unit has generated any fault codes.
- Check whether new software is available for the engine control unit.
- Renew the engine control unit if the software does not support the cruise control interface.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.