AutoCodes – Chevrolet – B1E3A Chevrolet

B1E3A Chevrolet 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 Chevrolet 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 932

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 Chevrolet 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 Chevrolet - Sensor Power Circuit Voltage - AutoCodes.com — B1E3A Chevrolet Code - Sensor Power Circuit Voltage

What does this mean?

What are the Possible Causes of the DTC B1E3A Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet Code

1. What does OBDII code B1E3A mean in a Chevrolet?

Code B1E3A indicates an issue with the sensor power circuit voltage, meaning the vehicle has detected an abnormal voltage level in the circuit supplying power to a specific sensor.

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

Symptoms may include illuminated warning lights (like the check engine light), erratic sensor readings, malfunctioning vehicle systems, or reduced performance.

3. What causes code B1E3A to appear in a Chevrolet?

Possible causes include a damaged or corroded sensor power circuit, faulty wiring, a bad sensor, or a malfunctioning power supply module.

4. Can I drive my Chevrolet with the B1E3A code active?

It is not recommended to drive with this code active as it may affect the performance of critical vehicle systems. Address the issue as soon as possible to avoid further damage.

5. How do I diagnose code B1E3A in my Chevrolet?

Diagnosis involves using an OBDII scanner to pinpoint the faulty sensor, visually inspecting the wiring and connectors, and testing the sensor power circuit for proper voltage.

6. What tools are needed to fix the B1E3A code in a Chevrolet?

Youâ€™ll need an OBDII scanner, a multimeter to test voltage, and basic tools for inspecting and repairing wiring or replacing components.

7. How can I fix code B1E3A in a Chevrolet?

Repairs may include fixing damaged wires, cleaning corroded connectors, replacing the faulty sensor, or repairing/replacing the power supply module.

8. How much does it cost to repair code B1E3A in a Chevrolet?

Repair costs vary depending on the issue but typically range from $50 to $300, depending on whether itâ€™s a wiring repair or sensor/module replacement.

9. Can a weak battery cause the B1E3A code in a Chevrolet?

Yes, a weak or failing battery can result in fluctuating voltage levels, potentially triggering this code.

10. Is professional help necessary to resolve the B1E3A code in a Chevrolet?

If youâ€™re unfamiliar with diagnosing electrical systems, itâ€™s best to seek professional help to avoid causing further damage or misdiagnosing the problem.