Scania fault code 8389
Code 8389 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
AMS
Electrically heated reductant hose H25, open circuit or short circuit to supply voltage
The control unit for the exhaust gas aftertreatment management system indicates that the pins for the electrically heated reductant hose are short circuited to supply voltage or th…
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EEC Exhaust Emission Control
Reductant circuit
Fault in the reductant heater for reductant hose 1 (H25).
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