P1125 FORD Possible Causes

• Faulty throttle position sensor
• Throttle position sensor harness is open or shorted
• Poor electrical connection in throttle position sensor circuit

How to Fix P1125 FORD Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The Engine Control Module (ECM) detected the Throttle Position (TP) sensor voltage extending above or below calibrated limits

Possible Symptoms

Check Engine Light on (or Service Engine Soon warning light)

P1125 FORD Meaning

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. The TPS is a rotary potentiometer sensor that provides a signal to the Powertrain Control Module (PCM) that is linearly proportional to the throttle plate/shaft position. As the TPS is rotated by the throttle shaft, the following operating conditions are determined by the PCM:

• Closed throttle (includes idle or deceleration)
• Part throttle (includes cruise or moderate acceleration)
• Wide open throttle (includes maximum acceleration or crank flare)
• Throttle angle rate

P1125 GMC Possible Causes

• Faulty accelerator pedal position sensor
• Accelerator pedal position sensor harness is open or shorted
• Poor electrical connection in accelerator pedal position sensor circuit

How to Fix P1125 GMC Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The Powertrain Control Module (PCM) detects that the difference between accelerator pedal position sensor 1 (APP) and APP sensor 2 is greater than the expected value.

Possible Symptoms

Illuminated check engine light (or service engine soon warning light)

P1125 GMC Meaning

The accelerator pedal position sensor 1 (APP) and 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 with signal voltages proportional to pedal movement. The signal voltage from APP sensor 1 is low at rest and increases when the pedal is depressed.
The signal voltage from APP sensor 2 is low at rest and increases when the pedal is depressed. When the control module detects that the signal circuits of APP sensor 1 and APP sensor 2 do not correlate with each other, DTC P1125 is set.

P1125 HYUNDAI Possible Causes

• Low fuel pressure
• Clogged fuel filter
• Faulty fuel pump
• Engine mechanical condition
• Large vacuum leak

How to Fix P1125 HYUNDAI Code?

Start by checking the “possible causes” listed above. Visually inspect the wiring harness and corresponding connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light on (or service engine soon warning light)

P1125 HYUNDAI Meaning

Fuel Pressure Sensor 1 is the generic description for Hyundai P1125 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about Hyundai P1125 OBDII code.

P1125 LEXUS Possible Causes

• Faulty throttle control motor
• Throttle control motor wiring harness is open or short-circuited
• Poor electrical connection in throttle control motor circuit

How to Fix P1125 LEXUS Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light on (or service engine soon warning light)

P1125 LEXUS Meaning

The throttle motor is actuated by the ECM and it opens and closes the throttle valve.
The throttle valve opening angle is detected by the throttle position sensor mounted on the throttle body and it provides feedback to the ECM to control the throttle motor so that the throttle valve opening angle is properly responsive to driving conditions.
If this DTC is stored, the ECM cuts power to the throttle motor and magnetic clutch, and the throttle valve is completely closed by the return spring.
However, the throttle valve opening angle can be controlled by the accelerator pedal via the throttle cable

P1125 LINCOLN Possible Causes

• Faulty throttle position sensor
• Throttle position sensor circuit open or shorted
• Poor electrical connection in throttle position sensor circuit

How to Fix P1125 LINCOLN Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The Engine Control Module (ECM) detected the Throttle Position (TP) sensor voltage extending above or below calibrated limits

Symptoms

Possible symptoms

Check Engine Light illuminated (or Service Engine Soon warning light)

P1125 LINCOLN Meaning

The Throttle Position Sensor (TPS) responds to accelerator pedal movement. The TPS is a rotary potentiometer sensor that provides a signal to the Powertrain Control Module (PCM) that is linearly proportional to throttle plate/shaft position. As the TPS is rotated by the throttle shaft, the following operating conditions are determined by the PCM:
• Closed throttle (includes idle or deceleration)
• Part throttle (includes cruise or moderate acceleration)
• Wide open throttle (includes maximum acceleration or crank start enrichment)
• Throttle angle rate

P1125 MAZDA Possible Causes

• Faulty throttle position sensor
• Throttle position sensor harness is open or shorted
• Poor electrical connection in throttle position sensor circuit

How to Fix Code P1125 MAZDA?

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 pins.

When is the Code Detected?

The Engine Control Module (ECM) detected the Throttle Position (TP) sensor voltage extending above or below calibrated limits

Symptoms

Possible

Engine light on (or service engine soon warning light)

P1125 MAZDA Meaning

Intermittent throttle position sensor is the generic description for Mazda code P1125, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about Mazda P1125 OBDII code.

P1125 MERCURY Possible Causes

• Faulty throttle position sensor
• Throttle position sensor harness is open or shorted
• Poor electrical connection in throttle position sensor circuit

How to Fix P1125 MERCURY Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding cable harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The Engine Control Module (ECM) detected the Throttle Position (TP) sensor voltage extending above or below calibrated limits

Possible Symptoms

Engine light on (or service engine soon warning light)

P1125 MERCURY Meaning

The Throttle Position Sensor (TPS) responds to accelerator pedal movement. The TPS is a rotary potentiometer sensor that provides a signal to the Powertrain Control Module (PCM) that is linearly proportional to throttle plate/shaft position. As the TPS is rotated by the throttle shaft, the following operating conditions are determined by the PCM:
• Closed throttle (includes idle or deceleration)
• Part throttle (includes cruise or moderate acceleration)
• Wide open throttle (includes maximum acceleration or crank flare)
• Throttle angle rate

P1125 PONTIAC Possible Causes

• Faulty accelerator pedal position sensor
• Accelerator pedal position sensor harness is open or shorted
• Poor electrical connection in accelerator pedal position sensor circuit

How to Fix P1125 PONTIAC Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The Powertrain Control Module (PCM) detects that the difference between accelerator pedal position sensor 1 (APP) and APP sensor 2 is greater than the expected value.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P1125 PONTIAC Meaning

The accelerator pedal position sensor 1 (APP) and 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 with signal voltages proportional to pedal movement. The signal voltage from APP sensor 1 is low at rest and increases when the pedal is depressed.
The signal voltage from APP sensor 2 is low at rest and increases when the pedal is depressed. When the control module detects that the signal circuits of APP sensor 1 and APP sensor 2 do not correlate with each other, DTC P1125 is set.

P1125 SATURN Possible Causes

• Faulty accelerator pedal position sensor
• Accelerator pedal position sensor harness is open or shorted
• Poor electrical connection in accelerator pedal position sensor circuit

How to Fix P1125 SATURN Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The Powertrain Control Module (PCM) detects that the difference between Accelerator Pedal Position Sensor 1 (APP) and APP Sensor 2 is greater than the expected value.

Possible Symptoms

Illuminated MIL (or Service Engine Soon warning light)

P1125 SATURN Meaning

The Accelerator Pedal Position Sensor 1 (APP) and 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 with signal voltages proportional to pedal movement. The signal voltage from APP Sensor 1 is low at rest and increases when the pedal is depressed.
The signal voltage from APP Sensor 2 is low at rest and increases when the pedal is depressed. When the Control Module detects that the signal circuits of APP Sensor 1 and APP Sensor 2 do not correlate with each other, DTC P1125 is set.

The P1125 code on a Toyota vehicle is related to a problem with the throttle control motor. This code indicates that the ECM (Engine Control Module) has detected a malfunction or issue with the throttle control motor.

Meaning of Code P1125

The throttle control motor is responsible for opening and closing the throttle valve in the air intake system. This motor is controlled by the ECM, which adjusts the throttle position to regulate air intake based on driving conditions and engine requirements.

The throttle position sensor monitors the throttle valve’s opening angle and sends this information back to the ECM, allowing it to precisely control the throttle opening. If this code is triggered, it generally means the throttle control motor is not functioning correctly. In this case, the ECM cuts power to the throttle motor and the magnetic clutch system, forcing the throttle valve to close completely using the return spring.

However, in this degraded mode, the throttle valve can still be controlled by the accelerator pedal via a throttle cable (if applicable), which may result in less responsive driving.

Possible Causes of Code P1125

1. Faulty Throttle Control Motor: If the throttle control motor is defective, it may not respond correctly to ECM commands, causing this code.
2. Open or Shorted Throttle Motor Wiring Harness: Faulty wiring or a broken connection between the throttle motor and the ECM can interrupt the control signal.
3. Poor Electrical Connection: Defective or corroded electrical connectors can prevent the throttle control motor from receiving or sending signals correctly.

Possible Symptoms of Code P1125

• Illuminated Check Engine Light (or Service Engine Soon) on the dashboard.
• Reduced Acceleration or Poor Throttle Response: The engine may not respond properly to accelerator pedal inputs, especially in degraded mode.
• Unstable Idling or Engine Not Running Properly: The engine may have difficulty maintaining a stable idle.
• Loss of Engine Performance: The vehicle may experience a loss of power, particularly during acceleration.

How to Fix Code P1125

1. Check the Throttle Control Motor: Inspect the throttle control motor for any signs of failure or malfunction. If the motor is defective, it will need to be replaced.
2. Inspect the Wiring Harness: Check that the throttle motor wiring harness is intact, with no breaks or short circuits. Look for damaged or worn wires.
3. Check Electrical Connections: Ensure all connectors for the throttle control motor are properly plugged in and free from corrosion or damage. Clean or replace faulty connectors if necessary.
4. Test the Throttle Position Sensor: If the motor and wiring are in good condition, the throttle position sensor may be faulty. Test the sensor to verify it is correctly sending information to the ECM.
5. Clear the Code and Test: After performing necessary repairs, clear the error code using an OBDII scanner and conduct a road test to check if the problem persists.

Conclusion

The P1125 code for a Toyota is related to a problem with the throttle control motor. This can be caused by a faulty motor, damaged wiring, or a poor electrical connection. To fix this code, it is important to inspect these components and ensure everything is functioning correctly. If necessary, replace the throttle control motor or repair wiring and connector issues.