AutoCodes – Chevrolet – B154A 2017 Chevrolet Silverado

B154A 2017 Chevrolet Silverado Code - Driver Mirror Internal Malfunction

Quick Answer

The outside mirror switch and passenger window switch are on a serial data circuit with the memory seat module as the master. Common causes include Faulty Driver Outside Rearview Mirror Motor, Driver Outside Rearview Mirror Motor harness is open or shorted, Driver Outside Rearview Mirror Motor 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: B154A 2017 Chevrolet Silverado indicates Driver Mirror Internal Malfunction.
Common causes: Common causes include Faulty Driver Outside Rearview Mirror Motor, Driver Outside Rearview Mirror Motor harness is open or shorted, Driver Outside Rearview Mirror Motor 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 186

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 21, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B154A 2017 Chevrolet Silverado Description

The outside mirror switch and passenger window switch are on a serial data circuit with the memory seat module as the master. The mirror select and directional control switches are inputs to the memory seat module through the serial data circuit. When the memory seat module receives switch inputs from the outside mirror switch, mirror output commands are sent to the appropriate switch through the serial data circuit. The outside mirror switch and passenger window switch control the left and right outside rearview mirrors through bi-directional motor control circuits. The motor control circuits are floating while in an inactive state and the switches will apply power and ground to the control circuits as necessary to move the mirror in the commanded direction.
Mirror position is determined by both horizontal and vertical position sensors in each of the power mirrors. The outside mirror switch and passenger window switch supply a 5 V reference, low reference, and horizontal and vertical position signal circuits to these sensors. The signal circuits are referenced from 5 V by the switches and the signal circuit voltage levels represent the mirror positions. The mirror positions are sent to the memory seat module through the serial data circuit where they are stored for memory mirror operation. When the memory seat module receives a memory recall command, the memory seat module will send the go to position commands to the outside mirror switch and passenger window switch. The switches will then drive the appropriate mirror motors to the commanded position sensor settings.
The Diagnostic Trouble Code (DTC) will be set when an internal malfunction has been detected by the outside rearview mirror switch while commanding the driver outside rearview mirror UP, DOWN, LEFT, or RIGHT.

OBDII Code B154A 2017 Chevrolet Silverado - Driver Mirror Internal Malfunction - AutoCodes.com — B154A 2017 Chevrolet Silverado Code - Driver Mirror Internal Malfunction

What does this mean?

What are the Possible Causes of the DTC B154A 2017 Chevrolet Silverado?

Faulty Driver Outside Rearview Mirror Motor
Driver Outside Rearview Mirror Motor harness is open or shorted
Driver Outside Rearview Mirror Motor circuit poor electrical connection

How to Fix the DTC B154A 2017 Chevrolet Silverado?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B154A 2017 Chevrolet Silverado 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 B154A 2017 Chevrolet Silverado code?

Need more information on how to fix the B154A 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B154A 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 B154A 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B154A in a 2017 Chevrolet Silverado?

- The common symptoms include issues with adjusting the driver-side mirror electronically, erratic movements of the mirror, or the mirror not responding to adjustments.

2. What does the OBDII code B154A indicate in a 2017 Chevrolet Silverado?

- The code B154A indicates a driver mirror internal malfunction in the 2017 Chevrolet Silverado.

3. What are the possible causes of the driver mirror internal malfunction in a 2017 Chevrolet Silverado?

- The potential causes of this issue can range from a faulty mirror motor, damaged wiring or connectors, to a malfunctioning mirror control switch.

4. How can I diagnose the driver mirror internal malfunction in my 2017 Chevrolet Silverado?

- To diagnose the issue, you can start by checking the mirror's electrical connections, testing the mirror motor, and inspecting the mirror control switch for any visible damage.

5. Can I repair the driver mirror internal malfunction in my 2017 Chevrolet Silverado myself?

- Depending on the exact cause of the issue, some repairs like replacing a faulty mirror motor or repairing damaged wiring can be done at home if you have the necessary tools and skills.

6. Should I reset the OBDII code B154A after fixing the driver mirror internal malfunction in my 2017 Chevrolet Silverado?

- It's recommended to reset the code after addressing the mirror issue to clear the error code from the system and see if the problem has been successfully resolved.

7. Is it safe to continue driving with the OBDII code B154A triggered in my 2017 Chevrolet Silverado?

- While the issue might not affect the overall drivability of the vehicle, driving with a malfunctioning driver-side mirror can compromise safety, so it's best to address the problem promptly.

8. Can extreme weather conditions cause the driver mirror internal malfunction in a 2017 Chevrolet Silverado?

- Yes, extreme weather conditions like intense heat or cold can potentially damage the mirror components and lead to the internal malfunction indicated by the OBDII code B154A.

9. How much does it typically cost to repair the driver mirror internal malfunction in a 2017 Chevrolet Silverado?

- The cost of repairing the issue can vary depending on the exact cause and whether you choose to fix it yourself or take it to a professional mechanic, but it can range from a few dollars for minor repairs to a couple of hundred dollars for more complex issues.

10. Are there any preventive measures I can take to avoid encountering the driver mirror internal malfunction in my 2017 Chevrolet Silverado?

- Regularly inspecting and maintaining the mirror components, avoiding rough handling of the mirror, and protecting it from extreme weather conditions can help prevent the driver mirror internal malfunction in your Chevrolet Silverado.