Engine-Codes - Ford - P0122 2003 FORD F150

P0122 2003 FORD F150 Code - Throttle Position Sensor Circuit Low Input

- Code Popularity: 7,193 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P0122 2003 FORD F150 Code?

  • Faulty throttle position sensor.
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor circuit poor electrical connection

|How to Fix the P0122 2003 FORD F150 Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|P0122 2003 FORD F150 code tech notes

The TP sensor circuit is monitored by the PCM for a low TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) changes below a minimum calibrated limit, the test fails.

Fault exhibits a symptom of limited power. A TP PID (TP VPID) reading less than 3.42% (0.17 volt) in key ON engine OFF, continuous memory or key ON engine running indicates a hard fault.

|What is the cost to diagnose the P0122 2003 FORD F150 code?

Labor: 1.0

The cost to diagnose the P0122 2003 FORD F150 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0122 2003 FORD F150 code detected?

The Throttle Position Sensor (TPS) signal 1 circuit has reported an open or low voltage

|What are P0122 2003 FORD F150 code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P0122 2003 FORD F150 Code Mean?

The throttle position sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

Throttle Position Sensor Circuit Low Input

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