Scania fault code 8242
Code 8242 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMU
Coolant pump (M77), short circuit to voltage supply
The coolant pump control system indicates a break in the control signal.
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AMS
Exhaust gas temperature sensor upstream of the SCR catalytic converter
Fault in exhaust gas temperature sensor upstream of the SCR catalytic converter.
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EEC Exhaust Emission Control
Exhaust gas temperature sensor upstream of SCR catalytic converter
Fault on the exhaust gas temperature sensor upstream of the SCR catalytic converter.
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