AutoCodes – Buick – B1E3A Buick

B1E3A Buick Code - Sensor Power Circuit Voltage

Quick Answer

The object alarm detection system senses how close the vehicle is to an object. Common causes include Faulty Rear Object Sensor, Rear Object Sensor harness is open or shorted, Rear Object 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: B1E3A Buick indicates Sensor Power Circuit Voltage.
Common causes: Common causes include Faulty Rear Object Sensor, Rear Object Sensor harness is open or shorted, Rear Object 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.

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Code Popularity 761

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 03, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1E3A Buick Description

The object alarm detection system senses how close the vehicle is to an object. The distance is determined by the 4 ultrasonic sensors located in the rear and front (if equipped) bumpers. The object detection system will notify the driver when backing up while parking at speeds less than 8 km/h (5 mph). The object detection system will use front and rear display indicators and the radio speakers for notification. The OBDII code sets when the object alarm module has detected the object alarm sensor supplied voltage circuit is below 7.2 volts or object alarm sensor supplied voltage circuit is above 9.2 volts.

OBDII Code B1E3A Buick - Sensor Power Circuit Voltage - AutoCodes.com — B1E3A Buick Code - Sensor Power Circuit Voltage

What does this mean?

What are the Possible Causes of the DTC B1E3A Buick?

Faulty Rear Object Sensor
Rear Object Sensor harness is open or shorted
Rear Object Sensor circuit poor electrical connection
Faulty Object Alarm Module

How to Fix the DTC B1E3A Buick?

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 does this mean?

Code Tech Notes

B1E3A 03 Sensor Power Circuit Voltage Below Threshold
B1E3A 07 Sensor Power Circuit Voltage Above Threshold

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1E3A Buick 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.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1E3A Buick Code

1. What does OBDII code B1E3A for Buick indicate?

Code B1E3A relates to a sensor power circuit voltage issue in a Buick vehicle.

2. What are the common symptoms of OBDII code B1E3A in a Buick?

Common symptoms of code B1E3A may include engine stalling, poor acceleration, rough idling, and a decrease in fuel efficiency.

3. What are the possible causes of OBDII code B1E3A in a Buick?

Potential causes of code B1E3A include a faulty sensor, damaged wiring or connectors, a failing sensor power circuit, or a problem with the vehicle's ECM.

4. How can I diagnose the OBDII code B1E3A in my Buick?

Diagnosing code B1E3A involves using an OBDII scanner to retrieve the specific fault code, inspecting the sensor and related components, testing the sensor power circuit, and checking for any loose connections or damaged wiring.

5. Can I continue driving my Buick with OBDII code B1E3A?

It is not recommended to drive your Buick with an unresolved OBDII code B1E3A, as it can lead to further damage to the vehicle and potentially unsafe driving conditions.

6. How can I repair OBDII code B1E3A in my Buick?

Repairing code B1E3A may involve replacing the faulty sensor, repairing damaged wiring or connectors, resetting the ECM, or seeking assistance from a professional mechanic for a more thorough diagnosis and repair.

7. Is it possible to reset OBDII code B1E3A in a Buick without fixing the underlying issue?

While you can clear the fault code temporarily, it is crucial to address the underlying issue causing code B1E3A to prevent it from reoccurring and potentially causing more significant problems.

8. Will OBDII code B1E3A cause my Buick to fail an emissions test?

Yes, OBDII code B1E3A can cause your Buick to fail an emissions test, as it indicates a problem with the sensor power circuit voltage, which is crucial for proper emissions control.

9. How much does it typically cost to repair OBDII code B1E3A in a Buick?

The cost of repairing OBDII code B1E3A can vary depending on the exact cause of the issue, the parts needed for repair, and labor costs. It is advisable to obtain quotes from different mechanics or repair shops.

10. Can a DIY enthusiast fix OBDII code B1E3A in a Buick?

While some experienced DIY enthusiasts may be able to diagnose and repair OBDII code B1E3A, it is recommended to seek professional help, especially if you are not familiar with automotive electrical systems.