LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 2007 >> Pacifica Base, 3.8 L >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P2112 To P2271 >> P2123-Accelerator Pedal Position Sensor 1 Circuit High >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

Possible Causes 
INTERMITTENT DTC
(F855) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO THE (F855) 5 VOLT SUPPLY CIRCUIT
(K23) APP SIGNAL 1 CIRCUIT OPEN OR HIGH RESISTANCE
(K167) APP SENSOR GROUND 1 CIRCUIT OPEN OR HIGH RESISTANCE
ACCELERATOR PEDAL POSITION SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.