Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble with a sensor that helps detect how close something is. It's like when a toy car can't tell if it's about to bump into something.
The P2E89 code indicates that there is a low voltage condition in the Proximity Detection Circuit B. This circuit is responsible for detecting the proximity of objects, typically used in parking assist or collision avoidance systems.
The Proximity Detection Circuit B is part of the vehicle's advanced driver-assistance systems (ADAS). It uses sensors to measure the distance between the vehicle and nearby objects. A 'low' condition suggests that the voltage in the circuit is below the expected range, which can affect the system's ability to accurately detect objects.
• Parking assist system not working
• Warning lights on the dashboard
• Inaccurate distance readings
• Faulty proximity sensor
• Wiring issues or poor connections in the circuit
• Malfunctioning control module
Proximity Sensor: A device that detects the presence and distance of nearby objects.
ADAS: Advanced Driver-Assistance Systems, technologies that assist drivers in driving and parking functions.
• Check for any visible damage to the sensors.
• Inspect the wiring and connections for any signs of wear or corrosion.
• Use a multimeter to test the voltage in the circuit.
• Replace the faulty proximity sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the control module if needed.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly check and clean sensors.
• Ensure wiring is not exposed to excessive moisture.
• Schedule routine maintenance checks.
Sensor Issue
• Avoid relying on parking assist until the issue is resolved.
• Drive cautiously and be aware of surroundings.
Check with your vehicle manufacturer for warranty coverage on electronic components.
This code has become more common with the increased use of ADAS systems in modern vehicles.
Moderate – While the vehicle can still be driven, the parking assist feature may not function properly.
Ensure all repairs are conducted by a qualified technician to maintain vehicle safety and compliance with regulations.
• Vehicle parked and ignition on.
• Proximity sensors activated.
The proximity sensors are typically located in the front and rear bumpers of the vehicle.
Q: Can I drive my car with this code?
A: Yes, but be cautious as the parking assist feature may not work correctly.
Q: Will this code affect my car's performance?
A: No, it primarily affects the parking assist system.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.