AutoCodes – GMC – B1E3A GMC

B1E3A GMC 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 GMC 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 736

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

What does this mean?

What are the Possible Causes of the DTC B1E3A GMC?

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 GMC?

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 GMC 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 GMC Code

1. What are the common symptoms of OBDII code B1E3A GMC (Sensor Power Circuit Voltage)?

The common symptoms of this code may include engine misfires, rough idling, poor fuel efficiency, and potential stalling.

2. What could cause the OBDII code B1E3A GMC (Sensor Power Circuit Voltage) to trigger?

The code B1E3A may be triggered due to a faulty sensor power circuit, damaged wiring, loose connections, or a malfunctioning sensor itself.

3. How can I diagnose the issue related to OBDII code B1E3A GMC?

Diagnosing the issue may involve checking the sensor power circuit voltage using a multimeter, inspecting the wiring for any damage, and testing the sensor for proper functionality.

4. Can I still drive my vehicle with the OBDII code B1E3A GMC active?

It is not recommended to drive your vehicle with the B1E3A code active, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

5. What are some repair tips for fixing the OBDII code B1E3A GMC (Sensor Power Circuit Voltage)?

Repair tips may include repairing or replacing damaged wiring, ensuring proper connections, replacing the sensor if necessary, and resetting the code after repairs are completed.

6. Will resetting the OBDII code B1E3A GMC make it go away permanently?

Resetting the code may clear it temporarily, but if the underlying issue is not addressed and fixed, the code is likely to reappear.

7. Can a DIY enthusiast fix the OBDII code B1E3A GMC issue at home?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the B1E3A code issue at home. However, seeking professional help is recommended for complex issues.

8. How much can I expect to pay for repairing the OBDII code B1E3A GMC at a mechanic or dealership?

The cost of repairing the B1E3A code can vary depending on the extent of the issue, parts needed for replacement, and labor costs. It is advisable to request a quote from a mechanic or dealership for an accurate estimate.

9. Will ignoring the OBDII code B1E3A GMC cause further damage to my vehicle?

Ignoring the B1E3A code can potentially lead to further damage to your vehicle, affecting its performance and reliability. It is best to address the issue promptly to prevent additional problems.

10. Is the OBDII code B1E3A GMC (Sensor Power Circuit Voltage) a common issue in GMC vehicles?

The B1E3A code related to the sensor power circuit voltage is not uncommon in GMC vehicles and can occur due to various factors requiring proper diagnosis and repair.