Engine-CodesGMC – P0C80 2018 GMC Sierra

P0C80 2018 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 7 Circuit Erratic

Quick Answer

The P0C80 diagnostic trouble code (DTC) specifically relates to the Hybrid/EV Battery Temperature Sensor 7 Circuit Erratic in a 2018 GMC Sierra. Common causes include Faulty temperature sensor, Damaged wiring harness, Corrosion or poor connections in the sensor circuit. 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
P0C80 2018 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 7 Circuit Erratic.
Common causes
Common causes include Faulty temperature sensor, Damaged wiring harness, Corrosion or poor connections in the sensor circuit.
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 P0C80 2018 GMC Sierra Description

The P0C80 diagnostic trouble code (DTC) specifically relates to the Hybrid/EV Battery Temperature Sensor 7 Circuit Erratic in a 2018 GMC Sierra. This code indicates that there is a malfunction or erratic behavior in the circuit associated with the temperature sensor for the seventh cell of the hybrid or electric vehicle (EV) battery. The battery temperature sensor plays a crucial role in monitoring the temperature of the battery cells to ensure they operate within safe limits.

OBDII Code P0C80 2018 GMC Sierra - Hybrid/EV Battery Temperature Sensor 7 Circuit Erratic
P0C80 2018 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 7 Circuit Erratic

Common Causes of P0C80 2018 GMC Sierra

  1. Faulty temperature sensor
  2. Damaged wiring harness
  3. Corrosion or poor connections in the sensor circuit
  4. Issues with the hybrid/EV control module
  5. Environmental factors affecting the sensor's performance

Symptoms of P0C80 2018 GMC Sierra

  1. Check engine light illuminated
  2. Inaccurate battery temperature readings on the dashboard display
  3. Reduced fuel economy
  4. Decreased hybrid/EV system performance
  5. Potential overheating of the battery pack

How to Fix P0C80 2018 GMC Sierra

  1. Begin by diagnosing the specific cause of the erratic temperature sensor circuit, using a scan tool to retrieve the DTC and pinpoint the exact issue.
  2. Inspect the temperature sensor and wiring harness for any visible damage or corrosion, replacing any faulty components as needed.
  3. Test the sensor circuit for continuity and proper voltage, ensuring that all connections are secure and functioning correctly.
  4. Reset the DTC and clear the check engine light, then monitor the system to verify that the issue has been resolved.
  5. If the problem persists, consider seeking professional assistance from a certified mechanic with experience in hybrid/EV systems.

Cost to Fix P0C80 2018 GMC Sierra

The cost of repairing a Hybrid/EV Battery Temperature Sensor 7 Circuit Erratic issue in a 2018 GMC Sierra can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, parts for this repair may range from $100 to $300, while labor costs can add an additional $100 to $200. Overall, the total repair cost could fall between $200 and $500, but it's important to note that prices may differ based on location, the shop's labor rates, and any additional diagnostics or services required. It's recommended to consult with a local auto repair shop for a more accurate estimate tailored to your situation.

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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.

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