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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 219 (6.7L - DTCS P1192 To P21C3 - 3500 Cab & Chassis) >> Diagnosis And Testing >> P202C-(Diesel Exhaust Fluid) REDUCTANT Tank Heater Control Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
(K473) DIESEL EXHAUST FLUID ENGINE COOLANT CONTROL VALVE SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K473) DIESEL EXHAUST FLUID ENGINE COOLANT CONTROL VALVE SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
(K474) DIESEL EXHAUST FLUID ENGINE COOLANT CONTROL VALVE RETURN CIRCUIT OPEN/HIGH RESISTANCE
(K473) DIESEL EXHAUST FLUID ENGINE COOLANT CONTROL VALVE SIGNAL CIRCUIT SHORTED TO THE (K474) DIESEL EXHAUST FLUID ENGINE COOLANT CONTROL VALVE RETURN CIRCUIT
DIESEL EXHAUST FLUID ENGINE COOLANT CONTROL VALVE
DIESEL EXHAUST FLUID DOSING CONTROL UNIT

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  . 

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