AutoCodes – Generic – P1125

P1125 Code - Throttle Position Sensor Intermittent

Quick Answer

The Accelerator Pedal Position (APP) sensor 1 and the APP sensor 2 are potentiometer type sensors, each with the following circuits: • A 5-volt reference circuit • A low reference circuit • A signal circuit The control module provides the APP sensors with a 5-volt reference circuit and a low reference circuit. Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal 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: P1125 indicates Throttle Position Sensor Intermittent.
Common causes: Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal 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 67,724

How popular is this code, among other codes? Medium

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 Apr 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1125 Description

The Accelerator Pedal Position (APP) sensor 1 and the APP sensor 2 are potentiometer type sensors, each with the following circuits:
• A 5-volt reference circuit
• A low reference circuit
• A signal circuit
The control module provides the APP sensors with a 5-volt reference circuit and a low reference circuit. The APP sensors then provide the control module signal voltages proportional to pedal movement. The APP sensor 1 signal voltage is low at rest and increases as the pedal is depressed.
The APP sensor 2 signal voltage is low at rest and increases as the pedal is depressed. When the control module detects that the APP sensor 1 and the APP sensor 2 signal circuits are out of correlation with each other, DTC P1125 sets.

OBDII Code P1125 - Throttle Position Sensor Intermittent - AutoCodes.com — P1125 Code - Throttle Position Sensor Intermittent

What does this mean?

What are the Possible Causes of the DTC P1125?

Faulty Accelerator Pedal Position Sensor
Accelerator Pedal Position Sensor harness is open or shorted
Accelerator Pedal Position Sensor circuit poor electrical connection

How to Fix the DTC P1125?

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 P1125 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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Need more information on how to fix the P1125 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1125 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1125 Audi — Long Term Fuel Trim Adjustment Bank 2 System Too Rich
P1125 Buick — Accelerator Pedal Position Sensor Fault
P1125 Cadillac — Accelerator Pedal Position Sensor Fault
P1125 Chevrolet — Accelerator Pedal Position Sensor Fault
P1125 Dodge — IAT Sensor Circuit Intermitten Low Voltage
P1125 Ford — Throttle Position Sensor Intermittent
P1125 GMC — Accelerator Pedal Position Sensor Fault
P1125 Hyundai — Fuel Pressure Sensor 1
P1125 Lexus — Throttle Control Motor Circuit Malfunction
P1125 Lincoln — Throttle Position Sensor Intermittent
P1125 Mazda — Throttle Position Sensor Intermittent
P1125 Mercury — Throttle Position Sensor Intermittent
P1125 Pontiac — Accelerator Pedal Position Sensor Fault
P1125 Saturn — Accelerator Pedal Position Sensor Fault
P1125 Toyota — Throttle Control Motor Circuit Malfunction
P1125 Volkswagen — Long Term Fuel Trim Adjustment Bank 2 System Too Rich

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 P1125 Code

1. What are the common symptoms of OBDII code P1125 (Throttle Position Sensor Intermittent)?

- Common symptoms include stalling, rough idle, hesitation during acceleration, and a decrease in fuel efficiency.

2. What are the possible causes of OBDII code P1125 (Throttle Position Sensor Intermittent)?

- Possible causes include a faulty throttle position sensor, wiring issues, a dirty throttle body, or a problem with the electronic throttle control system.

3. How can I diagnose the cause of OBDII code P1125?

- Diagnosing the cause of P1125 may involve using a scan tool to check for the code, testing the throttle position sensor, inspecting the wiring for damage, and cleaning the throttle body.

4. Can I drive my vehicle with OBDII code P1125 (Throttle Position Sensor Intermittent)?

- It is not recommended to drive your vehicle with this code as it can lead to performance issues and potentially cause further damage to the engine.

5. How can I repair OBDII code P1125 (Throttle Position Sensor Intermittent) myself?

- You can attempt to repair P1125 by replacing the throttle position sensor, repairing any damaged wiring, cleaning the throttle body, and resetting the code using a scan tool.

6. Will OBDII code P1125 (Throttle Position Sensor Intermittent) cause my check engine light to illuminate?

- Yes, P1125 will trigger the check engine light to come on as it indicates a problem with the throttle position sensor.

7. Is it safe to continue driving my vehicle if I experience intermittent throttle response due to OBDII code P1125?

- It is not safe to drive your vehicle with intermittent throttle response as it can lead to unsafe driving conditions and potential engine damage.

8. How long does it typically take to repair OBDII code P1125 (Throttle Position Sensor Intermittent)?

- The repair time for P1125 can vary depending on the exact cause of the issue, but it may take anywhere from a few hours to a full day to diagnose and fix the problem.

9. Can a dirty throttle body cause OBDII code P1125 (Throttle Position Sensor Intermittent)?

- Yes, a dirty throttle body can cause issues with the throttle position sensor readings, leading to the triggering of P1125.

10. Will resetting the check engine light resolve OBDII code P1125 (Throttle Position Sensor Intermittent)?

- Resetting the check engine light may temporarily turn it off, but if the underlying issue causing P1125 is not addressed, the light is likely to come back on.