Engine-Codes
 
OBDII Code List
 
P2123 2008 FORD FUSION

P2123 2008 FORD FUSION - Throttle/Pedal Position Sensor/Switch 'D' Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

P2123 2008 Ford Fusion Possible Causes

  • Faulty Accelerator Pedal Position (APP) Sensor
  • Accelerator Pedal Position (APP) Sensor harness is open or shorted
  • Accelerator Pedal Position (APP) Sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

Cost of diagnosing the P2123 2008 Ford Fusion code

    Labor: 1.0

    The cost of diagnosing the P2123 2008 Ford Fusion code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P2123 2008 Ford Fusion Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • No throttle pedal response

P2123 2008 Ford Fusion Meaning

The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. There are 2 pedal position signals in the sensor. Both signals, APP and APP2, have a positive slope (increasing angle, increasing voltage), but are offset and increase at different rates. The 2 pedal position signals make sure the PCM receives a correct input even if 1 signal has a concern. The PCM determines if a signal is incorrect by calculating where it should be, inferred from the other signals. If a concern is present with one of the circuits the other input is used. There are 2 reference voltage circuits, 2 signal return circuits, and 2 signal circuits (a total of 6 circuits and pins) between the PCM and the APP sensor assembly. The pedal position signal is converted to pedal travel degrees (rotary angle) by the PCM. The software converts these degrees to counts, which is the input to the torque based strategy. The P2123 code sets when The accelerator pedal position (APP) sensor 1 is out of self-test range high.
OBDII Code P2123 2008 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'D' Circuit High - Engine-Codes.com

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