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P1782 Diagnostic Trouble Code Discussion for November 2018

2-4 Pressure Switch Sense Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1782
Help Request Posted
2014 Mercedes-Benz Sprinter 2500 3.0L MIL Lamp on VIN: WD3PE8CC3E
P1782: Efficiency of SCR catalytic converter is too low. Third time in for same issue. Customer does not bring in until one start remaining. Biggest mystery is that there have never been ANY codes in SCR module, only CDI. First visit we found DEF injector caked up, so cleaned and ran volume test, 15 grams = OK, ...
November 02, 2018