B154A Chevrolet 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 Chevrolet 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.
Code B154A Chevrolet Description
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.
What are the Possible Causes of the DTC B154A Chevrolet?
- 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 Chevrolet?
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 Chevrolet 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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Information for Specific Chevrolet Models
- B154A 2014 Chevrolet Silverado — Driver Mirror Internal Malfunction
- B154A 2015 Chevrolet Silverado — Driver Mirror Internal Malfunction
- B154A 2016 Chevrolet Silverado — Driver Mirror Internal Malfunction
- B154A 2017 Chevrolet Silverado — Driver Mirror Internal Malfunction
- B154A 2018 Chevrolet Silverado — Driver Mirror Internal Malfunction
Frequently Asked Questions about B154A Chevrolet Code
1. What are the common symptoms of OBDII code B154A for a Chevrolet indicating Driver Mirror Internal Malfunction?
- The common symptoms include erratic movement or failure of the driver-side mirror, loss of mirror adjustment functionality, or the mirror getting stuck in one position.
2. What could cause the Driver Mirror Internal Malfunction OBDII code B154A in a Chevrolet?
- The code B154A is often triggered by internal failures within the driver-side mirror assembly, such as electronic component malfunctions, wiring issues, or a faulty mirror motor.
3. How can I diagnose the Driver Mirror Internal Malfunction code B154A in my Chevrolet?
- Diagnosis typically involves checking the mirror's wiring connections, testing the mirror motor functionality, and inspecting the mirror control module for any faults or damage.
4. Can I still drive my Chevrolet with the B154A OBDII code related to the driver mirror malfunction?
- Yes, you can still drive your Chevrolet with this code, but it is recommended to address the issue promptly to ensure proper functionality of the driver-side mirror for safe driving.
5. Is it possible to repair the Driver Mirror Internal Malfunction code B154A in a Chevrolet by myself?
- Depending on your automotive repair skills, you may be able to address this issue yourself by inspecting and potentially replacing the faulty components within the driver-side mirror assembly.
6. What are some tips for repairing the B154A OBDII code related to the driver mirror malfunction in a Chevrolet?
- Ensure that the mirror is disconnected from power before attempting any repairs, carefully inspect all wiring for damage, and consider consulting a repair manual for your specific Chevrolet model.
7. How much does it typically cost to repair the Driver Mirror Internal Malfunction OBDII code B154A in a Chevrolet?
- The cost of repair can vary based on the extent of the issue and whether you choose to replace components yourself or have it done by a professional. Costs may range from $50 for DIY repairs to a few hundred dollars at a dealership.
8. Can resetting the OBDII system clear the B154A code related to the driver mirror malfunction in a Chevrolet?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the driver mirror malfunction is not addressed, the code is likely to reappear.
9. Are there any recalls or technical service bulletins related to the B154A OBDII code for a Chevrolet's driver mirror malfunction?
- It's recommended to check with a Chevrolet dealership or online resources for any recalls or technical service bulletins related to the B154A code to see if there are known issues or solutions provided by the manufacturer.
10. Can a malfunctioning driver mirror impact the overall safety of driving a Chevrolet vehicle?
- Yes, a malfunctioning driver-side mirror can impact visibility and safety while driving, making it crucial to address the B154A OBDII code promptly to ensure proper mirror functionality.
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