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Home >> Jeep >> 2008 >> Commander Overland, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTCS P0016 To P0125, Pre-Diagnostic Troubleshooting Procedure, Intermittent Condition >> P0123-Throttle Position Sensor 1 Circuit High >> Possible Causes
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Possible Causes

Possible Causes 
(K22) TP SENSOR NO.1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K22) TP SENSOR NO.1 SIGNAL CIRCUIT OPEN
(K22) TP SENSOR NO.1 SIGNAL CIRCUIT SHORTED TO THE (F855) 5-VOLT SUPPLY CIRCUIT
(K922) TP SENSOR RETURN 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.