B2148 Code - Outside Rearview Mirror Position Sensor Input Voltage Low
Quick Answer
The B2148 diagnostic trouble code (DTC) indicates that the outside rearview mirror position sensor input voltage is low. Common causes include Faulty outside rearview mirror position sensor, Damaged wiring or connectors related to the sensor, Corrosion or poor connections in the sensor circuitry. 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
- B2148 indicates Outside Rearview Mirror Position Sensor Input Voltage Low.
- Common causes
- Common causes include Faulty outside rearview mirror position sensor, Damaged wiring or connectors related to the sensor, Corrosion or poor connections in the sensor circuitry.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B2148 Description
The B2148 diagnostic trouble code (DTC) indicates that the outside rearview mirror position sensor input voltage is low. This sensor is responsible for detecting the position of the exterior rearview mirror on the vehicle. When the voltage input to the sensor is lower than the specified range, it signifies a problem with the sensor or its circuitry.
Common Causes of B2148
- Faulty outside rearview mirror position sensor.
- Damaged wiring or connectors related to the sensor.
- Corrosion or poor connections in the sensor circuitry.
- Low battery voltage affecting sensor operation.
Symptoms of B2148
- Inability to adjust the outside rearview mirror position.
- Dashboard warning light indicating a mirror sensor fault.
- Erratic movement of the exterior rearview mirror.
- Electrical issues affecting other vehicle systems.
How to Fix B2148
- Begin by inspecting the wiring and connectors associated with the outside rearview mirror position sensor for any visible damage or corrosion.
- Test the voltage output of the sensor to determine if it falls within the specified range. Replace the sensor if the voltage is consistently low.
- Check the power supply to the sensor to ensure it is operating correctly. Repair any issues with the power source if necessary.
- Clear the DTC from the vehicle's memory using a diagnostic scanner after completing the repair to reset the system and verify the fix.
- Test the functionality of the outside rearview mirror position sensor by adjusting the mirror and ensuring it responds accurately to the input.
Cost to Fix B2148
The typical repair costs for addressing a B2148 code related to the outside rearview mirror position sensor input voltage low can range from $100 to $300, including parts and labor. However, specific costs may vary depending on the location, vehicle make and model, and the extent of the repair needed. It is recommended to consult with local auto repair shops for a more accurate estimate based on individual circumstances. Keep in mind that diagnosis time and labor rates at different repair facilities can also impact the overall cost.
Need more information about the B2148 code?
Need more information on how to fix the B2148 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2148 code diagnosed by a professional: Find a repair shop in your area
Code B2148 Information for Specific Makes
- B2148 Buick — Outside Rearview Mirror Position Sensor Input Voltage Low
- B2148 Cadillac — Outside Rearview Mirror Position Sensor Input Voltage Low
- B2148 Chevrolet — Outside Rearview Mirror Position Sensor Input Voltage Low
- B2148 GMC — Outside Rearview Mirror Position Sensor Input Voltage Low
Frequently Asked Questions about B2148 Code
No Frequently Asked Questions about B2148 Code found.
Discuss the causes and fixes for B2148 OBDII Code
Code B2148 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.