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Engine-Codes – GMC – P1A82 GMC

P1A82 GMC Code - Starter/Generator Control Module Coolant Level Sensor 2 High Voltage

Quick Answer

The P1A82 diagnostic trouble code for GMC vehicles indicates an issue with the Starter/Generator Control Module Coolant Level Sensor 2 registering high voltage. Common causes include Malfunctioning coolant level sensor, Wiring issues or electrical shorts in the system, Faulty Starter/Generator Control Module. 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
P1A82 GMC indicates Starter/Generator Control Module Coolant Level Sensor 2 High Voltage.
Common causes
Common causes include Malfunctioning coolant level sensor, Wiring issues or electrical shorts in the system, Faulty Starter/Generator Control Module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 19, 2024
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Code P1A82 GMC Description

The P1A82 diagnostic trouble code for GMC vehicles indicates an issue with the Starter/Generator Control Module Coolant Level Sensor 2 registering high voltage. This sensor is responsible for monitoring the coolant level in the vehicle's system and ensuring that it remains within the appropriate range. When the sensor detects a voltage reading that is higher than expected, it triggers the P1A82 code. This can lead to various performance issues in the vehicle, as the engine's cooling system may not be functioning optimally.

OBDII Code P1A82 GMC - Starter/Generator Control Module Coolant Level Sensor 2 High Voltage
P1A82 GMC Code - Starter/Generator Control Module Coolant Level Sensor 2 High Voltage

Common Causes of P1A82 GMC

  1. Malfunctioning coolant level sensor
  2. Wiring issues or electrical shorts in the system
  3. Faulty Starter/Generator Control Module
  4. Coolant system leaks or blockages
  5. Corrosion or damage to sensor connectors

Symptoms of P1A82 GMC

  1. Check engine light illuminated on the dashboard
  2. Engine overheating or running hotter than usual
  3. Loss of coolant without any visible leaks
  4. Inaccurate coolant level readings on the dashboard
  5. Reduced engine performance or efficiency

How to Fix P1A82 GMC

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P1A82 code and pinpoint the exact cause of the high voltage reading.
  2. Inspect the coolant level sensor, wiring, and connectors for any visible damage or signs of wear. Replace any components that are faulty or damaged.
  3. Test the Starter/Generator Control Module to ensure it is functioning correctly. Replace the module if necessary.
  4. Check the coolant system for leaks or blockages and address any issues found.
  5. Clear the diagnostic trouble codes from the vehicle's system and test drive to ensure the issue has been resolved.

Cost to Fix P1A82 GMC

The typical repair costs for addressing a P1A82 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for replacing a coolant level sensor or control module can range from $50 to $200, while labor costs can add an additional $100 to $300. Overall, the total repair cost for this issue may fall between $150 and $500. It's important to note that these estimates are rough averages and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the repair facility. It's recommended to obtain a detailed quote from a trusted auto repair shop before proceeding with the repairs.

What does this mean?

Tech Notes for P1A82 GMC

If the vehicle is on an extreme angle this code may set.

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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 P1A82 GMC Code

1. What are the common symptoms of OBDII code P1A82 in a GMC related to the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage?

The common symptoms may include illuminated check engine light, reduced engine performance, and potential issues with starting the vehicle.

2. What typically causes the OBDII code P1A82 related to the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage in a GMC?

This code is commonly triggered by a malfunction in the coolant level sensor 2, which may be due to a faulty sensor, wiring issues, or low coolant levels.

3. How can I diagnose the OBDII code P1A82 in my GMC that relates to the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage?

Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the coolant level sensor 2 and its connections, checking coolant levels, and testing the sensor's functionality.

4. Can a DIY enthusiast repair the OBDII code P1A82 associated with the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage in a GMC?

While some simple repairs like checking and cleaning sensor connections can be done by DIY enthusiasts, diagnosing and replacing the sensor itself may require professional help.

5. What are the potential risks of ignoring the OBDII code P1A82 related to the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage in a GMC?

Ignoring this code can lead to overheating issues, engine damage, and potential safety hazards due to inaccurate coolant level readings.

6. Is it safe to continue driving my GMC with the OBDII code P1A82 related to the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage illuminated?

It is not recommended to drive the vehicle with this code illuminated, as it indicates a potential issue that could affect the engine's performance and reliability.

7. Are there any preventative maintenance tips to avoid triggering the OBDII code P1A82 in a GMC related to the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage?

Regularly checking coolant levels, inspecting sensor connections, and addressing any cooling system issues promptly can help prevent triggering this code.

8. How much does it typically cost to repair the OBDII code P1A82 associated with the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage in a GMC?

The cost of repair can vary depending on the cause of the issue, but it may involve replacing the coolant level sensor 2, which can range from $100 to $300 including parts and labor.

9. Can a faulty coolant level sensor 2 triggering the OBDII code P1A82 affect the overall performance of my GMC?

Yes, a faulty coolant level sensor 2 can impact the engine's cooling system operation, potentially leading to overheating and reduced performance if not addressed promptly.

10. How long does it usually take to repair the OBDII code P1A82 related to the Starter/Generator Control Module Coolant Level Sensor 2 High Voltage in a GMC?

The repair time can vary depending on the exact cause of the issue and the extent of the repairs needed, but it often takes a few hours to diagnose and replace the faulty sensor.

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