Scania fault code 1771
Code 1771 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
NOx sensor downstream of the catalytic converter is not supported
The NOx sensor message on software version is not received or does not match any supported sensor.
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TMS Transmission Management System
Oil temperature sensor, electric machine return oil, short circuit
Short circuit to earth.
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