P05E3
Park Brake Sensor or Switch Circuit
The park brake apply switch or position sensor reports a circuit fault. The ECU loses the indication whether the parking brake is engaged - relevant for stop-start, hill-hold, and certain shift-interlock strategies.
The park brake apply switch or position sensor reports a circuit fault. The ECU loses the indication whether the parking brake is engaged - relevant for stop-start, hill-hold, and certain shift-interlock strategies.
Common causes
- high
Open in switch or wiring
One of the most commonly reported causes for this code — check this first.
Typical part cost: $70-280
See all causes + fix costs
Create a free Wrenchify account to unlock the rest for P05E3.
Unlock causesFree forever · No credit card
First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
Get the full step-by-step diagnosis
Create a free Wrenchify account to unlock the rest for P05E3.
Unlock diagnosisFree forever · No credit card
Related codes
See related trouble codes
Create a free Wrenchify account to unlock the rest for P05E3.
Unlock related codesFree forever · No credit card
Frequently asked questions
What does P05E3 mean?
P05E3 means "Park Brake Sensor or Switch Circuit". It is a generic OBD-II code that points to a fault in the vehicle speed, idle control, auxiliary inputs.
What are the most common causes of P05E3?
open in switch or wiring — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
Get the full P05E3 diagnosis for your vehicle
Year, make, model + step-by-step repair help — free plan included.