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AdBlue system fault

Stevebf891
Stevebf891
in Ford Ranger Club

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Got a check engine light on my 2017 2.2 ranger, plugged it in and showed faults P204F(reductant system performance) 

P20C4 Reductant heater C control circuit high 

P20BC reductant heater A control circuit high 

P20C0 reductant heater B control circuit high

i done a bit of research and found couple people had the same issue with break in wiring. I checked all the wiring as much as I could and couldn't find anything checked the heater and tested good I was thinking could it be the ecu module under the driver side dash as I found this is to do with the AD blue system but while out tested today I have noticed I now have no rear or side indicators and ticker going fast, no rear break or reversing lights. One of my front side lights is off and other flickering but if I turn engine off all the lights to off position both side lights come on 

Could this still be the ecu I was thinking or back to wiring will I need to lift the bed to inspect all wiring. 

  • Quote
    • 2 months later...


    Hi,

    Have the same faults on my Ranger. You found a solution? 

     

  • Quote

    Ranger, AdBlue fault.

     

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