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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1659 (5.7L CNG - DTCS P1457 To P2181 - 2500 Hd) >> DTC Troubleshooting >> P217F-Alternative Fuel Injector Power Relay Control Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
CNG INJECTOR RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
CNG INJECTOR RELAY CONTROL CIRCUIT SHORTED TO THE FUSED ASD RELAY OUTPUT CIRCUIT
CNG INJECTOR RELAY
POWERTRAIN CONTROL MODULE

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.