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Home >> Dodge and Ram >> 2008 >> Challenger >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P1004 To P2173 >> Diagnosis And Testing >> P2123-Accelerator Pedal Position Sensor 1 Circuit High >> Possible Causes

Possible Causes

Possible Causes 
(F852/F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO THE (F852/F855) 5-VOLT SUPPLY CIRCUIT
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO THE (F856) 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. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .