AutoCodesDodge – P0122 1999 Dodge Ram

P0122 1999 Dodge Ram Code - Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input

Quick Answer

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0122 1999 Dodge Ram indicates Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 8,941
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 20, 2022
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Code P0122 1999 Dodge Ram Description

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 Powertrain Control Module (PCM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the PCM.
Idle position of the throttle valve is determined by the PCM 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.
OBDII Code P0122 1999 Dodge Ram - Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input - AutoCodes.com
P0122 1999 Dodge Ram Code - Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input

What are the Possible Causes of the DTC P0122 1999 Dodge Ram?

  • Faulty throttle position sensor
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0122 1999 Dodge Ram?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0122 1999 Dodge Ram code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0122 1999 Dodge Ram code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0122 1999 Dodge Ram Code

1. What are the common symptoms of OBDII code P0122 in a 1999 Dodge Ram?

- Common symptoms include poor acceleration, stalling, rough idling, and decreased fuel efficiency.

2. What causes the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code (P0122) in a 1999 Dodge Ram?

- The most common causes are a faulty throttle position sensor, damaged wiring or connectors, or a problem with the accelerator pedal position sensor.

3. How can I diagnose the P0122 code in my 1999 Dodge Ram?

- You can use a scan tool to read the trouble code and monitor the throttle position sensor's voltage output while manually moving the throttle.

4. What are some repair tips for fixing OBDII code P0122 in a 1999 Dodge Ram?

- Check the throttle position sensor for proper operation, inspect the wiring and connectors for damage, and ensure there are no obstructions affecting the accelerator pedal's movement.

5. Can I drive my 1999 Dodge Ram with OBDII code P0122?

- It is not recommended to drive with the P0122 code as it can lead to further engine performance issues and potential safety hazards.

6. How much does it typically cost to repair the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code in a 1999 Dodge Ram?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Are there any DIY fixes for OBDII code P0122 in a 1999 Dodge Ram?

- If you have the necessary tools and expertise, you may be able to replace the throttle position sensor or repair damaged wiring yourself.

8. Will disconnecting the battery reset the P0122 trouble code in my 1999 Dodge Ram?

- Disconnecting the battery may temporarily clear the code, but it is not a permanent solution. It is recommended to diagnose and repair the underlying issue.

9. How long does it take to repair the Throttle Position Sensor/Accelerator Position Pedal Circuit Low Input code in a 1999 Dodge Ram?

- The repair time can vary depending on the extent of the issue, but it typically takes around 1-2 hours for a professional mechanic to diagnose and fix the problem.

10. Can a faulty throttle position sensor cause other issues in a 1999 Dodge Ram besides triggering the P0122 trouble code?

- Yes, a faulty throttle position sensor can cause drivability issues, poor engine performance, and inaccurate fuel delivery, leading to further engine problems if left unresolved.

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