B154A 2018 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 2018 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.
Code B154A 2018 Chevrolet Silverado 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 2018 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 2018 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 2018 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.
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Frequently Asked Questions about B154A 2018 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B154A in a 2018 Chevrolet Silverado?
The common symptom of code B154A in a 2018 Chevrolet Silverado is a malfunction in the driver mirror internal system, which may result in erratic movement or failure to adjust properly.
2. What causes the OBDII code B154A in a 2018 Chevrolet Silverado?
The B154A code in a 2018 Chevrolet Silverado is typically triggered by an internal malfunction within the driver mirror system, which can be caused by wiring issues, a faulty mirror motor, or a defective control module.
3. How can I diagnose the driver mirror internal malfunction in my 2018 Chevrolet Silverado?
Diagnosing the driver mirror internal malfunction involves inspecting the wiring connections, testing the mirror motor functionality, and using an OBDII scanner to retrieve the specific B154A trouble code stored in the vehicle's system.
4. Can I still drive my 2018 Chevrolet Silverado with the B154A code present?
While it may be possible to drive the vehicle with the B154A code, it is recommended to address the issue promptly to ensure proper functionality of the driver mirror system and to maintain safe driving conditions.
5. What are the repair options for fixing the driver mirror internal malfunction in a 2018 Chevrolet Silverado?
Repair options for the B154A code may include repairing or replacing damaged wiring, fixing or replacing the mirror motor, or reprogramming the control module to resolve the internal malfunction in the driver mirror system.
6. Is it safe to attempt DIY repairs for the B154A code in a 2018 Chevrolet Silverado?
DIY repairs for the B154A code are possible if you have the necessary tools, knowledge, and experience working with automotive electrical systems. However, for complex issues or if you are unsure, it is best to seek professional assistance.
7. How much does it typically cost to repair the driver mirror internal malfunction in a 2018 Chevrolet Silverado?
The cost of repairing the driver mirror internal malfunction can vary depending on the underlying cause of the issue, the extent of the repairs needed, and whether you choose to DIY or seek professional help. Costs may range from a few hundred to a few thousand dollars.
8. Can resetting the B154A trouble code clear the issue in a 2018 Chevrolet Silverado?
Resetting the B154A trouble code may temporarily clear the warning light, but it will not fix the underlying driver mirror internal malfunction. It is important to diagnose and address the root cause of the issue to prevent future occurrences.
9. How often does the B154A code occur in a 2018 Chevrolet Silverado?
The B154A code occurring in a 2018 Chevrolet Silverado can vary in frequency depending on the vehicle's usage, maintenance history, and environmental factors. If the issue persists, it should be addressed promptly.
10. Is the driver mirror internal malfunction covered under warranty for a 2018 Chevrolet Silverado?
The coverage of the driver mirror internal malfunction under warranty for a 2018 Chevrolet Silverado depends on the specific warranty terms and conditions provided by the manufacturer. It is advisable to check with the dealership or refer to the warranty documentation for more information.
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