Scania fault code 5021
Code 5021 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Internal fault in control unit
Critical internal fault in the control unit.
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OPC Opticruise gearbox control
Internal fault in control unit
Critical internal fault in the control unit, RAM or FLASH.
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AWD All-Wheel Drive
AWD control unit
Implausible signal.
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