AutoCodes – Jaguar – P0122 Jaguar

P0122 Jaguar Code - Throttle Position Sensor/Switch 'A' Circuit Low Input

Quick Answer

The Throttle Pedal Position (TPP) 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 Jaguar indicates Throttle Position Sensor/Switch 'A' 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 13,597

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0122 Jaguar Description

The Throttle Pedal Position (TPP) 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.

OBDII Code P0122 Jaguar - Throttle Position Sensor/Switch 'A' Circuit Low Input - AutoCodes.com — P0122 Jaguar Code - Throttle Position Sensor/Switch 'A' Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0122 Jaguar?

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

How to Fix the DTC P0122 Jaguar?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0122 Jaguar 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.

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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 Jaguar Code

1. What are the common symptoms of OBDII code P0122 in a Jaguar related to the Throttle Position Sensor/Switch 'A' Circuit Low Input?

The common symptoms include poor acceleration, stalling, rough idling, and difficulty maintaining a consistent speed.

2. What are the possible causes of OBDII code P0122 in a Jaguar?

Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

3. How can I diagnose the Throttle Position Sensor/Switch 'A' Circuit Low Input issue in my Jaguar?

You can diagnose the issue by using an OBDII scanner to retrieve the specific fault code, testing the throttle position sensor for proper voltage output, and inspecting the sensor circuit for any visible damage.

4. Can I drive my Jaguar with OBDII code P0122 present?

It is not recommended to drive with this code present, as it can lead to further damage to the engine or affect the vehicle's performance and drivability.

5. How can I repair OBDII code P0122 in my Jaguar?

Repair options include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, and resetting the fault code using an OBDII scanner.

6. Is it possible to reset OBDII code P0122 in a Jaguar without fixing the underlying issue?

Resetting the code without fixing the underlying issue may temporarily clear the warning light, but the problem will likely reoccur if the root cause is not addressed.

7. Can a DIY enthusiast fix OBDII code P0122 in a Jaguar, or should I seek professional help?

While some DIY enthusiasts may be able to replace the throttle position sensor or check for wiring issues, it is recommended to seek professional help for a thorough diagnosis and repair.

8. How much does it typically cost to repair OBDII code P0122 in a Jaguar?

The cost of repairing this code can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

9. Are there any preventive measures to avoid OBDII code P0122 in a Jaguar?

Regular maintenance checks, such as inspecting the throttle position sensor during routine servicing, can help prevent issues that lead to OBDII code P0122.

10. How long does it take to repair OBDII code P0122 in a Jaguar?

The repair time can vary depending on the complexity of the issue and the availability of parts, but it typically takes a few hours to a day for a skilled mechanic to diagnose and fix the problem.