Scania fault code 8377
Code 8377 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
AMS
V117, Reductant doser heater shorted to battery or open circuit
The control unit indicates that the control of the reductant doser heater is shorted to battery or open circuit.
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EEC Exhaust Emission Control
Reductant circuit
Fault in the control of the heater of the reductant doser.
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