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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS P2116 To P2457 >> DTC Troubleshooting >> P2128-Accelerator Pedal Position Sensor 2 Circuit High >> Possible Causes

Possible Causes

Possible Causes
5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
APP SENSOR SIGNAL 2 CIRCUIT SHORTED TO BATTERY VOLTAGE
APP SENSOR SIGNAL 2 CIRCUIT SHORTED TO AN APP SENSOR 5-VOLT SUPPLY CIRCUIT
ACCELERATOR PEDAL POSITION SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .