Scania fault code 139520
Code 139520 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Exhaust gas aftertreatment – temperature sensor upstream of the SCR catalytic converter
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OCS
Throttle actuator M34
Implausible value from the throttle actuator.
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OCE
Throttle actuator M34
Implausible value from the throttle actuator.
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