Scania fault code 4663
Code 4663 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
AMS
Electrically heated reductant hose H26, for high consumption
The electrically heated reductant hose has consumed more power than permitted.
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EEC Exhaust Emission Control
Reductant circuit
The reductant heater for reductant hose 2 (H26) has consumed more power than permitted.
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