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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1660 (5.7L - DTCS P000B To P0175 - 2500 Hd) >> DTC Troubleshooting >> P0122-Throttle Position Sensor 1 Circuit Low >> 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
TPS SIGNAL 1 CIRCUIT SHORTED TO GROUND
TPS SIGNAL 1 CIRCUIT SHORTED TO TPS SENSOR GROUND CIRCUIT
TPS SIGNAL 1 CIRCUIT SHORTED TO THE ETC MOTOR (+) CIRCUIT
TPS SIGNAL 1 CIRCUIT SHORTED TO THE ETC MOTOR (-) CIRCUIT
TPS SIGNAL 1 CIRCUIT OPEN/HIGH RESISTANCE
THROTTLE BODY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .