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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1639 (66RFE Automatic Transmission - DTCS P0871 To U1449 - 2500 Hd) >> DTC Troubleshooting >> P1794-Speed Sensor Ground Error >> 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
(T13) SPEED SENSOR GROUND CIRCUIT OPEN
(T13) SPEED SENSOR GROUND CIRCUIT SHORTED TO GROUND
(T13) SPEED SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting Procedure before proceeding. Refer to  66RFE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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