Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that there's a problem with the sensor that checks if the parking brake is on. It's not getting enough power to work right.
The P05E4 code indicates that the circuit for the park brake sensor or switch is experiencing a low voltage condition.
The park brake sensor or switch is responsible for detecting the status of the parking brake. When the circuit is low, it means that the voltage is below the expected range, which can prevent the sensor from accurately reporting the parking brake's status to the vehicle's computer.
• Parking brake warning light on the dashboard
• Inability to release the parking brake
• Parking brake not engaging properly
• Faulty park brake sensor/switch
• Damaged wiring or connectors
• Blown fuse in the park brake circuit
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
Circuit: A closed path through which an electric current flows or may flow.
• Inspect the park brake sensor and wiring for damage.
• Check the fuse related to the park brake circuit.
• Test the voltage at the park brake sensor connector.
• Replace the faulty park brake sensor or switch.
• Repair or replace damaged wiring or connectors.
• Replace the blown fuse in the circuit.
• Multimeter
• Screwdriver set
• OBD-II scanner
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect brake components.
• Ensure wiring is not exposed to excessive moisture.
• Perform routine vehicle diagnostics.
Sensor Issue
• Do not ignore the parking brake warning light.
• Have the vehicle inspected by a professional if unsure.
• Avoid using the parking brake until the issue is resolved.
Check with the vehicle manufacturer for specific warranty coverage on brake components.
This code has been associated with issues in vehicles with electronic parking brakes, especially in models with high mileage.
Moderate – Addressing this issue is important to ensure the parking brake functions properly.
Driving with a malfunctioning parking brake can be unsafe and may violate traffic laws.
• Vehicle parked on a level surface
• Ignition in the 'On' position
The park brake sensor is typically located near the parking brake mechanism, either on the pedal assembly or the electronic brake actuator.
Q: Can I drive with the P05E4 code?
A: It's not recommended to drive with this code active, as it may indicate that the parking brake is not functioning properly.
Q: How do I reset the P05E4 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, it should not return.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
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