Scania fault code 17021

Code 17021 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:

TMS Transmission Management System Solenoid valve for longitudinal stroke forwards Voltage too low between ground and circuit. Read explanation → OPC Opticruise gearbox control Solenoid valve for longitudinal stroke forwards Voltage too low between ground and circuit. Read explanation → AWD All-Wheel Drive Differential lock solenoid valve, transfer gearbox/front wheel drive There is a short circuit to ground in the solenoid valve. Read explanation →