AutoCodes – Chevrolet – B154B 2016 Chevrolet Silverado

B154B 2016 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 2016 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 191

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 2016 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 2016 Chevrolet Silverado - Passenger Mirror Internal Malfunction - AutoCodes.com — B154B 2016 Chevrolet Silverado Code - Passenger Mirror Internal Malfunction

What does this mean?

What are the Possible Causes of the DTC B154B 2016 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 2016 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 2016 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 2016 Chevrolet Silverado code?

Need more information on how to fix the B154B 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B154B in a 2016 Chevrolet Silverado?

- The common symptoms include the passenger-side mirror not functioning properly, such as not adjusting or folding correctly.

2. What typically causes the OBDII code B154B in a 2016 Chevrolet Silverado?

- The code B154B is usually triggered by an internal malfunction within the passenger mirror assembly.

3. How can I diagnose the passenger mirror internal malfunction in my 2016 Chevrolet Silverado?

- You can start by visually inspecting the mirror for any physical damage or signs of wear. Checking the mirror adjustment motor and wiring connections is also recommended.

4. Is it safe to drive my 2016 Chevrolet Silverado with the B154B OBDII code?

- As long as the malfunction is limited to the passenger mirror, it is generally safe to drive. However, it is advisable to address the issue promptly to ensure proper functionality.

5. Can I repair the passenger mirror internal malfunction in my 2016 Chevrolet Silverado myself?

- Depending on your technical skills, you may be able to repair the issue yourself by replacing the faulty mirror components or seeking guidance from a professional technician.

6. How much does it cost to repair the B154B code in a 2016 Chevrolet Silverado?

- The cost of repairing the code B154B can vary depending on the extent of the damage and whether you choose to do the repairs yourself or seek professional help. Costs may include parts and labor.

7. Are there any temporary fixes for the passenger mirror internal malfunction in a 2016 Chevrolet Silverado?

- In some cases, resetting the mirror controls or disconnecting and reconnecting the mirror wiring may temporarily resolve the issue. However, a permanent fix will likely require repair or replacement.

8. Can the OBDII code B154B affect other electrical components in my 2016 Chevrolet Silverado?

- The B154B code is specific to the passenger mirror internal malfunction and should not directly affect other electrical components in the vehicle.

9. Will resetting the OBDII system clear the B154B code in my 2016 Chevrolet Silverado?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the passenger mirror is not fixed, the code is likely to reappear.

10. How important is it to fix the B154B code in a 2016 Chevrolet Silverado?

- While the B154B code may not affect the overall drivability of the vehicle, it is important to address the issue to ensure proper functionality of the passenger-side mirror for safety and convenience.