AutoCodes – GMC – B1405 2016 GMC Sierra

B1405 2016 GMC Sierra Code - Control Module Voltage Reference Output 2 Circuit

Quick Answer

The parking assist sensors are 3-wire ultrasonic sensors that are used to determine the distance between the vehicle and an object. Common causes include Faulty Parking Assist Sensors, Parking Assist Sensors harness is open or shorted, Parking Assist Sensors 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: B1405 2016 GMC Sierra indicates Control Module Voltage Reference Output 2 Circuit.
Common causes: Common causes include Faulty Parking Assist Sensors, Parking Assist Sensors harness is open or shorted, Parking Assist Sensors 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 216

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 Apr 17, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1405 2016 GMC Sierra Description

The parking assist sensors are 3-wire ultrasonic sensors that are used to determine the distance between the vehicle and an object. The Parking Assist Control Module supplies a reference voltage to the parking assist sensors via the Parking Assist Sensor Reference Voltage circuit and provides ground via the low reference circuit. The Parking Assist Control Module triggers the sensors in a sequential loop. After each sensor transmits, the 6 Parking Assist Control Module uses the sensor echo received through the signal circuit to calculate the distance and position of an object.

OBDII Code B1405 2016 GMC Sierra - Control Module Voltage Reference Output 2 Circuit - AutoCodes.com — B1405 2016 GMC Sierra Code - Control Module Voltage Reference Output 2 Circuit

What does this mean?

What are the Possible Causes of the DTC B1405 2016 GMC Sierra?

Faulty Parking Assist Sensors
Parking Assist Sensors harness is open or shorted
Parking Assist Sensors circuit poor electrical connection
Faulty Parking Assist Control Module

How to Fix the DTC B1405 2016 GMC Sierra?

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

B1405:02 Control Module Voltage Reference Output 2 Circuit Short to Ground
B1405:03 Control Module Voltage Reference Output 2 Circuit Low Voltage
B1405:07 Control Module Voltage Reference Output 2 Circuit High Voltage

If the B1405 code is stored in the Seat Memory Control Module, check the Seat Motor and Seat Memory Control Module.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1405 2016 GMC Sierra 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.

Need more information about the B1405 2016 GMC Sierra code?

Need more information on how to fix the B1405 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B1405 2016 GMC Sierra Code

1. What are common symptoms of OBDII code B1405 in a 2016 GMC Sierra?

The common symptoms of OBDII code B1405 in a 2016 GMC Sierra include issues with vehicle starting, rough idling, poor engine performance, and illuminated warning lights on the dashboard.

2. What does OBDII code B1405 for Control Module Voltage Reference Output 2 Circuit mean?

OBDII code B1405 indicates a problem with the voltage reference output circuit 2 in the control module of a 2016 GMC Sierra.

3. What are possible causes of OBDII code B1405 in a 2016 GMC Sierra?

Possible causes of OBDII code B1405 in a 2016 GMC Sierra include a faulty control module, wiring issues, loose connections, or a malfunctioning voltage regulator.

4. How can I diagnose the OBDII code B1405 in my 2016 GMC Sierra?

Diagnosing OBDII code B1405 involves using a diagnostic scanner to retrieve the trouble codes, checking the voltage reference output circuit 2 for continuity, inspecting the wiring and connections, and testing the control module.

5. Can I drive my 2016 GMC Sierra with OBDII code B1405?

It is not recommended to drive your 2016 GMC Sierra with OBDII code B1405, as it can lead to further damage to the vehicle's control module and affect its overall performance.

6. How can I repair OBDII code B1405 in my 2016 GMC Sierra?

To repair OBDII code B1405 in a 2016 GMC Sierra, you may need to replace the faulty control module, repair or replace damaged wiring, ensure all connections are secure, and reset the trouble codes using a diagnostic scanner.

7. Can I reset OBDII code B1405 in my 2016 GMC Sierra without fixing the underlying issue?

Resetting OBDII code B1405 without fixing the underlying issue is not recommended, as the problem will persist and may lead to more serious issues with the vehicle's control module and electrical system.

8. How much does it cost to repair OBDII code B1405 in a 2016 GMC Sierra?

The cost to repair OBDII code B1405 in a 2016 GMC Sierra can vary depending on the exact cause of the issue, parts needed for replacement, and labor costs at the repair shop. It is advisable to get a diagnostic and repair estimate from a qualified mechanic.

9. Are there any preventive maintenance tips to avoid OBDII code B1405 in a 2016 GMC Sierra?

To prevent OBDII code B1405 in a 2016 GMC Sierra, it is recommended to regularly check and maintain the vehicle's electrical system, including inspecting wiring harnesses, connectors, and control modules for any signs of wear or damage.

10. How long does it take to repair OBDII code B1405 in a 2016 GMC Sierra?

The repair time for OBDII code B1405 in a 2016 GMC Sierra can vary depending on the complexity of the issue, availability of parts, and the expertise of the mechanic. It is best to consult with a professional technician for a more accurate estimate of the repair duration.