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Home >> Jeep >> 2007 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0112 To P0155 - Gas >> P0121-Throttle Position Sensor 1 Performance >> Possible Causes
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Possible Causes

Possible Causes 
EXCESSIVE RESISTANCE IN THE (K22) TP SENSOR NO.1 SIGNAL CIRCUIT
EXCESSIVE RESISTANCE IN THE (K122) TP SENSOR NO.2 SIGNAL CIRCUIT
EXCESSIVE RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT
EXCESSIVE RESISTANCE IN THE (K922) TP SENSOR RETURN CIRCUIT
(K22) TP SENSOR NO.1 SIGNAL CIRCUIT SHORTED TO THE (K122) TP SENSOR NO.2 SIGNAL CIRCUIT
THROTTLE POSITION SENSOR/THROTTLE BODY
PCM

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.