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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 424 (5.7L - DTCS B1810 To P0204 - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> P0122-Throttle Position Sensor 1 Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
TPS 1 SIGNAL CIRCUIT SHORTED TO GROUND
5-VOLT SUPPLY CIRCUIT SHORTED TO TPS RETURN CIRCUIT
TPS 1 SIGNAL CIRCUIT SHORTED TO TPS RETURN CIRCUIT
TPS 1 SIGNAL CIRCUIT SHORTED TO THE ETC MOTOR (+) CIRCUIT
TPS 1 SIGNAL CIRCUIT SHORTED TO THE ETC MOTOR (-) CIRCUIT
5-VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
TPS 1 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
THROTTLE BODY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .