Scania fault code 40990
Code 40990 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
EBS Electronic Braking System
Control module, circuit for wheel 1
Impermissible result in one of the system's operational checks.
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CCU
LIN communication, fault in the sun sensor
The control unit has interpreted that there is a LIN communication error with the sun sensor.
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ACC Automatic Climate Control
LIN communication
Fault in LIN communication with sun sensor T82.
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