AutoCodes – Chevrolet – B154B 2017 Chevrolet Silverado

B154B 2017 Chevrolet Silverado Code - Passenger 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 Passenger Outside Rearview Mirror Motor, Passenger Outside Rearview Mirror Motor harness is open or shorted, Passenger 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: B154B 2017 Chevrolet Silverado indicates Passenger Mirror Internal Malfunction.
Common causes: Common causes include Faulty Passenger Outside Rearview Mirror Motor, Passenger Outside Rearview Mirror Motor harness is open or shorted, Passenger 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.

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Code Popularity 228

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
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Code B154B 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 passenger window switch while commanding the passenger outside rearview mirror UP, DOWN, LEFT, or RIGHT.

OBDII Code B154B 2017 Chevrolet Silverado - Passenger Mirror Internal Malfunction - AutoCodes.com — B154B 2017 Chevrolet Silverado Code - Passenger Mirror Internal Malfunction

What does this mean?

What are the Possible Causes of the DTC B154B 2017 Chevrolet Silverado?

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

How to Fix the DTC B154B 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 B154B 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 B154B 2017 Chevrolet Silverado 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 B154B 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B154B in a 2017 Chevrolet Silverado?

- The common symptoms include the passenger mirror not adjusting properly or moving erratically, and the mirror control not responding to commands.

2. What does the OBDII code B154B indicate in a 2017 Chevrolet Silverado?

- The code B154B indicates a Passenger Mirror Internal Malfunction in the vehicle's mirror control system.

3. What are the possible causes of OBDII code B154B in a 2017 Chevrolet Silverado?

- The possible causes of code B154B can include a faulty mirror motor, wiring issues, a defective mirror control switch, or a malfunction in the mirror control module.

4. How can I diagnose the source of the Passenger Mirror Internal Malfunction in my 2017 Chevrolet Silverado?

- To diagnose the issue, you can start by checking the mirror fuse, inspecting the wiring connections, testing the mirror motor, and scanning the mirror control module for any fault codes.

5. Can I repair OBDII code B154B in my 2017 Chevrolet Silverado myself?

- Depending on the exact cause, you may be able to repair the issue yourself by replacing a faulty mirror motor, fixing wiring connections, or resetting the mirror control module.

6. Is it safe to continue driving my 2017 Chevrolet Silverado with OBDII code B154B?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper functioning of the passenger mirror control system.

7. How much does it typically cost to repair OBDII code B154B in a 2017 Chevrolet Silverado?

- The cost of repairing code B154B can vary based on the specific cause of the issue, but it may involve expenses for parts and labor, ranging from a few hundred dollars to possibly more depending on the extent of the problem.

8. Can a malfunctioning passenger mirror impact other vehicle systems in a 2017 Chevrolet Silverado?

- A malfunctioning passenger mirror may not directly impact other vehicle systems, but it can affect visibility and convenience while driving, making it important to address the issue promptly.

9. Are there any preventive measures to avoid OBDII code B154B in a 2017 Chevrolet Silverado?

- To prevent code B154B, you can periodically check the functioning of the passenger mirror, avoid overloading the mirror control system, and ensure proper maintenance of the mirror components.

10. How long does it typically take to repair the Passenger Mirror Internal Malfunction in a 2017 Chevrolet Silverado?

- The repair time for code B154B can vary depending on the specific cause and complexity of the issue, but it may take a few hours to a full day for diagnosis and repair.