Throttle Position

First place to start is to carefully inspect the wiring to the sensor for heat damage to the harness. Next, remove the connector and inspect the terminals for corrosion or spreading. You can purchase a replacement connector with new terminals at your Chrysler Dealer if needed. If the connector terminals are OK, you should check the continuity of the wiring from the TPS to the PCM connectors. If all check out ok and the problem still exists, it is possible that the PCM has an intermittent defective. Diagnostic code P0122-THROTTLE POSITION SENSOR VOLTAGE LOW, When Monitored: With the ignition on and battery voltage above 10.4 volts. Set Condition: Throttle Position Sensor signal voltage at the PCM is lower than 0.1 of a volt for 1.3 seconds. Possible Causes (INTERMITTENT CONDITION; 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND; 5 VOLT SUPPLY CIRCUIT OPEN; THROTTLE POSITION SENSOR INTERNAL FAILURE; TPS SIGNAL CIRCUIT SHORTED TO GROUND; THROTTLE POSITION SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT; PCM 5 VOLT SUPPLY CIRCUIT; PCM TPS SIGNAL CIRCUIT). Diagnostic code P0123-THROTTLE POSITION SENSOR VOLTAGE HIGH: When Monitored: With the ignition on and battery voltage above 10.4 volts. Set Condition: Throttle Position Sensor signal voltage at the PCM goes above 4.5 volts for 3.2 seconds. Possible causes, (INTERMITTENT CONDITION; THROTTLE POSITION SENSOR SIGNAL CIRCUIT SHORTED TO 5 VOLT SUPPLY CIRCUIT; THROTTLE POSITION SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE; THROTTLE POSITION SENSOR INTERNAL FAILURE; SENSOR GROUND CIRCUIT OPEN THROTTLE POSITION SENSOR SIGNAL CIRCUIT OPEN; PCM).