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Home >> Jeep >> 2009 >> Liberty Limited, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0016 To P0129 (Gas) >> P0123-Throttle Position Sensor 1 Circuit High >> Possible Causes

Possible Causes

Possible Causes 
(K22) TP SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(K22) TP SIGNAL 1 CIRCUIT OPEN
(K22) TP SIGNAL 1 CIRCUIT SHORTED TO THE (K855) 5-VOLT SUPPLY CIRCUIT
(K922) TP SENSOR GROUND CIRCUIT OPEN
THROTTLE POSITION SENSOR/THROTTLE BODY
THROTTLE PLATE JAMMED AGAINST THE MAXIMUM STOP
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .