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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (6.7L Diesel - DTCS - P21C4 To U1601 - 3500 Cab & Chassis) >> Diagnosis and Testing >> U11C1-Lost Communication With Diesel Exhaust Fluid Control Unit >> Code Description >> When Monitored:

When Monitored:

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Continuously with the ignition on.

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