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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 509 (3.6L - DTCS P0645 To P2138) >> Diagnosis And Testing >> P2123-Accelerator Pedal Position Sensor 1 Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
(K23) APP SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K23) APP SENSOR NO. 1 SIGNAL SHORTED TO THE (K852) 5-VOLT SUPPLY CIRCUIT
(K23) APP SENSOR NO. 1 SIGNAL SHORTED TO THE (K854) 5-VOLT SUPPLY CIRCUIT
(K167) APP SENSOR NO. 1 RETURN CIRCUIT OPEN
APP SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  . 

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