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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

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.