Engine-CodesGMC – B2145 GMC

B2145 GMC Code - Outside Rearview Mirror Position Sensor Input Voltage High

Quick Answer

The B2145 GMC code indicates that the outside rearview mirror position sensor input voltage is reading higher than the specified range. Common causes include Faulty outside rearview mirror position sensor, Wiring issues such as a short circuit or open circuit in the sensor circuit, Corrosion or damage to the sensor connector. 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
B2145 GMC indicates Outside Rearview Mirror Position Sensor Input Voltage High.
Common causes
Common causes include Faulty outside rearview mirror position sensor, Wiring issues such as a short circuit or open circuit in the sensor circuit, Corrosion or damage to the sensor connector.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B2145 GMC Description

The B2145 GMC code indicates that the outside rearview mirror position sensor input voltage is reading higher than the specified range. This sensor is responsible for detecting the position of the mirror and sending signals to the vehicle's control module to adjust the mirror accordingly. When the input voltage is too high, it can lead to inaccurate mirror adjustments or even complete failure of the mirror positioning system.

OBDII Code B2145 GMC - Outside Rearview Mirror Position Sensor Input Voltage High
B2145 GMC Code - Outside Rearview Mirror Position Sensor Input Voltage High

Common Causes of B2145 GMC

  1. Faulty outside rearview mirror position sensor.
  2. Wiring issues such as a short circuit or open circuit in the sensor circuit.
  3. Corrosion or damage to the sensor connector.
  4. Issues with the vehicle's control module that processes the sensor input.
  5. Electrical problems such as a voltage spike or surge affecting the sensor.

Symptoms of B2145 GMC

  1. Inability to adjust the outside rearview mirror properly.
  2. Erratic or jerky movements of the mirror when attempting to adjust it.
  3. Warning light on the dashboard related to the mirror adjustment system.
  4. Mirror not responding to adjustment commands from the driver's controls.
  5. Unusual noises coming from the mirror when attempting to adjust it.

How to Fix B2145 GMC

  1. Begin by diagnosing the specific cause of the high voltage input to the mirror position sensor using a diagnostic scanner.
  2. Inspect the wiring and sensor connector for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the sensor itself to determine if it is functioning correctly. Replace the sensor if it is found to be faulty.
  4. Check the vehicle's control module for any malfunctions or errors related to the mirror position sensor input. Reset or replace the control module if needed.
  5. Clear the diagnostic trouble codes from the vehicle's system and test the mirror adjustment functionality to ensure the issue has been resolved.

Cost to Fix B2145 GMC

The typical repair costs for addressing the B2145 GMC code can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $150 to $300 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can fluctuate, so it's advisable to obtain quotes from multiple shops to get a more accurate estimate. Additionally, factors such as the vehicle make and model, as well as the location of the repair shop, can influence the final cost of the repair.

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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 B2145 GMC Code

1. What are the common symptoms of OBDII code B2145 GMC?

The common symptoms of OBDII code B2145 GMC, which indicates an Outside Rearview Mirror Position Sensor Input Voltage High, include erratic movement or failure of the outside rearview mirrors.

2. What are the possible causes of OBDII code B2145 GMC?

Possible causes of OBDII code B2145 GMC include a faulty outside rearview mirror position sensor, damaged wiring or connectors in the mirror system, or issues with the mirror control module.

3. How can I diagnose the OBDII code B2145 GMC at home?

To diagnose OBDII code B2145 GMC at home, you can start by visually inspecting the outside rearview mirrors and their wiring for any visible damage. You can also use an OBDII scanner to read and clear the code to see if it returns.

4. Can I drive my vehicle with OBDII code B2145 GMC?

It is generally safe to drive your vehicle with OBDII code B2145 GMC, but you may experience issues with the control and adjustment of your outside rearview mirrors.

5. How can I repair OBDII code B2145 GMC?

To repair OBDII code B2145 GMC, you may need to replace the faulty outside rearview mirror position sensor, repair any damaged wiring or connectors, or replace the mirror control module if necessary.

6. Can weather conditions affect OBDII code B2145 GMC?

Extreme weather conditions, such as heavy rain or snow, can potentially damage the outside rearview mirror components and contribute to triggering OBDII code B2145 GMC.

7. Is OBDII code B2145 GMC a common issue in GMC vehicles?

OBDII code B2145 GMC related to the Outside Rearview Mirror Position Sensor Input Voltage High may occur in some GMC vehicles with advanced mirror control systems.

8. How long does it usually take to repair OBDII code B2145 GMC?

The repair time for OBDII code B2145 GMC can vary depending on the exact cause of the issue. Simple repairs like sensor replacement may take less than an hour, while complex wiring or module replacements could take longer.

9. Can resetting the OBDII system clear code B2145 GMC temporarily?

Resetting the OBDII system may temporarily clear OBDII code B2145 GMC, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.

10. Are there any maintenance tips to prevent OBDII code B2145 GMC from occurring?

Regularly inspecting the outside rearview mirrors and their components for damage, keeping the mirror system clean and well-maintained, and addressing any issues promptly can help prevent OBDII code B2145 GMC from occurring.

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