Scania fault code 743
Code 743 is used by 5 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
CAN communication with the EBS control unit
The TMS control unit receives encrypted CAN messages from the EBS control unit, but cannot decrypt them.
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COO Coordinator
Switch for raising and lowering the front air suspension
The switch has been active for more than 3 minutes.
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BCI
Programmable switch
One or more programmable power take-off switches are sending an incorrect signal in relation to the expected signal to the coordinator.
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CMS
Electrohydraulic pump for power steering
There is a short circuit to voltage or an open circuit on the PWM signal from the electrohydraulic pump for power steering.
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APS Air Processing System
Pressure control
Air pressure building up too quickly.
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