B2146 Buick Code - Outside Rearview Mirror Position Sensor Input Voltage Low
Quick Answer
The Memory Mirror Module (MMM) receives input from mirror position sensors during these functions: memory recall, memory seat, and easy exit. Common causes include Faulty Outside Rearview Mirror Motor, Outside Rearview Mirror Motor harness is open or shorted, 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
- B2146 Buick indicates Outside Rearview Mirror Position Sensor Input Voltage Low.
- Common causes
- Common causes include Faulty Outside Rearview Mirror Motor, Outside Rearview Mirror Motor harness is open or shorted, 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 B2146 Buick Description
What are the Possible Causes of the DTC B2146 Buick?
- Faulty Outside Rearview Mirror Motor
- Outside Rearview Mirror Motor harness is open or shorted
- Outside Rearview Mirror Motor circuit poor electrical connection
- Faulty Memory Mirror Module (MMM)
How to Fix the DTC B2146 Buick?
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 B2146 Buick 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 B2146 Buick Code
1. What are the common symptoms of OBDII code B2146 in a Buick related to the Outside Rearview Mirror Position Sensor Input Voltage Low?
The common symptoms include erratic movement of the outside rearview mirror, inability to adjust the mirror position electronically, and possibly a warning light on the dashboard.
2. What are the possible causes of the OBDII code B2146 in a Buick indicating Outside Rearview Mirror Position Sensor Input Voltage Low?
Potential causes of this code include a faulty mirror position sensor, damaged wiring or connectors in the mirror system, or issues with the power supply to the sensor.
3. How can I diagnose the OBDII code B2146 in a Buick for the Outside Rearview Mirror Position Sensor Input Voltage Low?
Diagnosis involves checking the wiring and connectors for damage, testing the mirror position sensor for proper functionality, and ensuring the power supply to the sensor is within specifications.
4. Is it safe to drive with the OBDII code B2146 indicating Outside Rearview Mirror Position Sensor Input Voltage Low in a Buick?
While it may be safe to drive with this code, it is recommended to address the issue promptly to ensure proper functionality of the outside rearview mirror for optimal visibility while driving.
5. Can I reset the OBDII code B2146 related to the Outside Rearview Mirror Position Sensor Input Voltage Low in my Buick?
Resetting the code may temporarily clear the warning light, but it is important to diagnose and repair the underlying issue causing the code to prevent it from reoccurring.
6. Is it possible to repair the OBDII code B2146 in a Buick myself, or should I seek professional help?
Depending on your experience and access to tools, you may be able to address this code yourself by checking the wiring, connectors, and sensor. However, if you are unsure, it is recommended to seek professional help for accurate diagnosis and repair.
7. Are there any specific repair tips for fixing the OBDII code B2146 Buick Outside Rearview Mirror Position Sensor Input Voltage Low?
Ensure to follow the manufacturer's diagnostic procedures, check for any technical service bulletins related to the issue, and use the appropriate tools for testing and repair of the mirror position sensor system.
8. Can extreme weather conditions affect the occurrence of the OBDII code B2146 Buick related to the Outside Rearview Mirror Position Sensor Input Voltage Low?
Extreme weather conditions such as excessive heat or cold can potentially impact the electrical components within the mirror system, leading to issues like low voltage input to the mirror position sensor triggering the code.
9. How much does it typically cost to repair the OBDII code B2146 in a Buick caused by the Outside Rearview Mirror Position Sensor Input Voltage Low?
The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the mirror position sensor, repairing damaged wiring, or addressing power supply issues, which can range from a few hundred dollars to more, including parts and labor.
10. Can the OBDII code B2146 Buick indicating Outside Rearview Mirror Position Sensor Input Voltage Low affect other vehicle systems or safety features?
While this code specifically relates to the outside rearview mirror position sensor, it is essential to address it promptly as issues with visibility can impact overall safety while driving.
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