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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 728 (6.4L - DTCS P000B To P0205 - 2500 Hd, 3500 Hd) >> Diagnosis And Testing >> P0203-Fuel Injector 3 Circuit/Open >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
FUEL INJECTOR 3 CONNECTOR OR WIRING
FUSED ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE
INJECTOR 3 CONTROL CIRCUIT SHORTED TO VOLTAGE
INJECTOR 3 CONTROL CIRCUIT SHORTED TO GROUND
INJECTOR 3 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
FUEL INJECTOR 3
POWERTRAIN CONTROL MODULE (PCM)

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