Scania fault code 1809
Code 1809 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
MBS
MBS expansion unit A, power supply pin group V1, current above limit value
MBS expansion unit A, the current to the pin for V1 has exceeded the limit value of 20 A for more than 5 seconds.
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ALLISON Allison automatic gearbox
Oil temperature sensor, unreasonably fast voltage changes
The control unit has detected unreasonably fast resistance changes in the oil temperature sensor.
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ICL Instrument Cluster
Software fault
The incorrect software causes reading errors in the instrument cluster.
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