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Engine-Codes – Land Rover – P1122 Land Rover

P1122 Land Rover Code - Accelerator Pedal Position Sensor Short Circuit To Ground

Quick Answer

The P1122 diagnostic trouble code for Land Rover vehicles indicates a short circuit to ground in the accelerator pedal position sensor circuit. Common causes include Wiring or connector damage, Corrosion in the sensor circuit, Faulty accelerator pedal position sensor. 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
P1122 Land Rover indicates Accelerator Pedal Position Sensor Short Circuit To Ground.
Common causes
Common causes include Wiring or connector damage, Corrosion in the sensor circuit, Faulty accelerator pedal position sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1122 Land Rover Description

The P1122 diagnostic trouble code for Land Rover vehicles indicates a short circuit to ground in the accelerator pedal position sensor circuit. The accelerator pedal position sensor is a vital component that detects the position of the accelerator pedal and sends this information to the engine control module (ECM). This data is used by the ECM to adjust fuel injection, ignition timing, and other engine parameters to optimize performance and fuel efficiency.

OBDII Code P1122 Land Rover - Accelerator Pedal Position Sensor Short Circuit To Ground
P1122 Land Rover Code - Accelerator Pedal Position Sensor Short Circuit To Ground

Common Causes of P1122 Land Rover

  1. Wiring or connector damage
  2. Corrosion in the sensor circuit
  3. Faulty accelerator pedal position sensor
  4. ECM malfunction
  5. Short circuit in the sensor circuit

Symptoms of P1122 Land Rover

  1. Loss of power or hesitation during acceleration
  2. Rough idling or stalling
  3. Check Engine Light illuminated on the dashboard
  4. Reduced fuel efficiency
  5. Limp mode activation

How to Fix P1122 Land Rover

  1. Perform a visual inspection of the wiring and connectors in the accelerator pedal position sensor circuit to check for any damage or corrosion.
  2. Test the accelerator pedal position sensor using a multimeter to determine if it is functioning properly.
  3. If the sensor is faulty, replace it with a new one.
  4. Clear the diagnostic trouble codes and reset the ECM to see if the issue is resolved.
  5. If the problem persists, further diagnosis may be required to pinpoint the root cause of the short circuit to ground.

Cost to Fix P1122 Land Rover

The typical repair costs for addressing a P1122 code on a Land Rover vehicle can vary depending on the specific model and year. In general, the cost of parts for a new accelerator pedal position sensor ranges from $50 to $150. Labor costs can vary but typically fall between $100 and $200 per hour.

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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 P1122 Land Rover Code

1. What are the common symptoms of OBDII code P1122 on a Land Rover related to the accelerator pedal position sensor short circuit to ground?

The common symptoms include loss of engine power, acceleration issues, and the vehicle going into limp mode.

2. What are the possible causes of the OBDII code P1122 on a Land Rover indicating a short circuit to ground in the accelerator pedal position sensor?

Possible causes include damaged wiring or connectors, a faulty accelerator pedal position sensor, or issues with the vehicle's ECM.

3. How can I diagnose the OBDII code P1122 on my Land Rover for a short circuit to ground in the accelerator pedal position sensor?

Diagnosis involves checking the wiring and connectors for damage, testing the accelerator pedal position sensor for proper function, and inspecting the ECM for any faults.

4. Can I drive my Land Rover with the OBDII code P1122 indicating a short circuit in the accelerator pedal position sensor?

It is not recommended to drive the vehicle with this issue as it can lead to unsafe driving conditions and potential further damage to the vehicle.

5. How can I repair the OBDII code P1122 on my Land Rover caused by a short circuit in the accelerator pedal position sensor?

Repairing the issue involves addressing the root cause, which could be fixing damaged wiring, replacing the accelerator pedal position sensor, or reprogramming the ECM.

6. Will resetting the OBDII code P1122 on my Land Rover solve the issue of the accelerator pedal position sensor short circuit to ground?

Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the short circuit in the accelerator pedal position sensor.

7. Are there any DIY tips for troubleshooting the OBDII code P1122 on a Land Rover with a short circuit in the accelerator pedal position sensor?

DIY tips include visually inspecting the wiring and connectors for damage, checking for loose connections, and ensuring proper grounding.

8. How much does it typically cost to repair the OBDII code P1122 on a Land Rover due to a short circuit in the accelerator pedal position sensor?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a professional mechanic help diagnose and repair the OBDII code P1122 on my Land Rover for a short circuit in the accelerator pedal position sensor?

Yes, a qualified mechanic with experience in handling OBDII codes can diagnose the issue using specialized tools and repair it effectively to ensure optimal vehicle performance.

10. Is the OBDII code P1122 related to a short circuit in the accelerator pedal position sensor a common issue in Land Rovers?

While it may not be extremely common, instances of this code occurring due to a short circuit in the accelerator pedal position sensor have been reported in Land Rover vehicles.

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