P1125 Cadillac Code - Accelerator Pedal Position Sensor Fault
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 Cadillac indicates Accelerator Pedal Position Sensor Fault.
- 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.
Code P1125 Cadillac Description
• 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.
What are the Possible Causes of the DTC P1125 Cadillac?
- 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 Cadillac?
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 Cadillac 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.
Need more information about the P1125 Cadillac code?
Need more information on how to fix the P1125 Cadillac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1125 Cadillac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1125 Cadillac Code
No Frequently Asked Questions about P1125 Cadillac Code found.
Discuss the causes and fixes for P1125 Cadillac OBDII Code
-
i have a problem with my 2004 escalade esv and when i turn on the truck my computer reads reduced engine power and stability system disabled, i won't let me go over 40 miles, can you help me find out what's the problem? thank you.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
