LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2008 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P1593 To P2135 >> P2123-Accelerator Pedal Position Sensor 1 Circuit High >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Possible Causes

Possible Causes 
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(K23) APP SIGNAL 1 SHORTED TO THE (K855) 5-VOLT SUPPLY CIRCUIT
(K23) APP SIGNAL 1 SHORTED TO THE (K857) 5-VOLT SUPPLY CIRCUIT
(K167) APP SENSOR GROUND 1 CIRCUIT OPEN
APP SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.