Scania fault code 770
Code 770 is used by 15 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Misfiring in cylinder 2
Cylinder 2 is not delivering any torque.
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TMS Transmission Management System
Rejected key update request
Validation of the immobiliser failed in the TMS control unit when the coordinator requested the TMS control unit to store a key.
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COO Coordinator
Air suspension remote control 2
A button for vehicle level adjustment has been active for an implausible amount of time.
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MBS
Sensor for front right-hand side cover, open circuit
The voltage supply to the control unit input for front right-hand side cover sensor is 12 V. This indicates an open circuit.
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DDU
BMS control system, no CAN communication
The DDU control unit is not receiving CAN messages from the BMS control system
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PCS
CAN message missing
Messages have not been received within 5 nominal transfer rate periods.
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LAS Locking and Alarm System
Communication with the CUV control unit
LAS has no communication with the visibility system CUV control unit.
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ICL Instrument Cluster
Communication with the brake management system (BMS)
No CAN messages from the brake management system.
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CMS
Engine start switch signal
The voltage on control unit pin B7 is too low.
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APS Air Processing System
Control unit
The internal supply voltage has been outside the permitted range.
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TCC
TCC control unit, temperature too high
The internal temperature sensor for the TCC control unit has detected a temperature above 100°C for more than 30 s.
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COMMUNICATOR Communicator (C200 / C300 / C400)
Communication with the engine management system (EMS)
The RTC control unit has not received any CAN messages from the EMS control unit within the time expected.
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DCU
Electric door motor, front door, short circuit outputs
A current above the maximum level of approx. 10 A has been detected on one of the 2 outputs (CN2-13 and CN2-17) on the H-bridge that drives the door electric motor.
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RTT Road Transport Informatics
GPS antenna overloaded
GPS antenna has excessively high supply voltage or is short circuited. The fault code is activated when the connection between the control unit and the GPS antenna has been interru…
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SVIP
GPS antenna overloaded
GPS antenna has excessively high supply voltage or is short circuited. The fault code is activated when the connection between the control unit and the GPS antenna has been interru…
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