Engine-Codes - Saturn - P1125 SATURN

P1125 SATURN - Accelerator Pedal Position Sensor Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1125 SATURN Possible Causes

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

How is the P1125 SATURN code repair?

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's pins.

What is the cost to diagnose the P1125 SATURN code

Labor: 1.0

The cost to diagnose the P1125 SATURN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

When is the code detected?

The Powertrain Control Module (PCM) detects that the difference between Accelerator Pedal Position (APP) sensor 1 and APP sensor 2 is more than the predicted value.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1125 SATURN Meaning

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.

More Information

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

Need more help?

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