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Home >> Chrysler >> 2007 >> Pacifica Limited, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P2112 To P2271 >> P2128-Accelerator Pedal Position Sensor 2 Circuit High >> Possible Causes
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Possible Causes

Possible Causes 
INTERMITTENT DTC
(F856) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(K29) APP SIGNAL 2 CIRCUIT SHORTED TO VOLTAGE
(K29) APP SIGNAL 2 CIRCUIT SHORTED TO THE (F856) 5 VOLT SUPPLY CIRCUIT
(K29) APP SIGNAL 2 CIRCUIT OPEN OR HIGH RESISTANCE
(K400) APP SENSOR GROUND 2 CIRCUIT OPEN OR HIGH RESISTANCE
ACCELERATOR PEDAL POSITION SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.