Engine-CodesGMC – P0C8C 2016 GMC Sierra

P0C8C 2016 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 9 Circuit Erratic

Quick Answer

The diagnostic trouble code P0C8C for a 2016 GMC Sierra indicates a fault in the Hybrid/EV Battery Temperature Sensor 9 Circuit, specifically that the sensor's signal is erratic. Common causes include Faulty Hybrid/EV Battery Temperature Sensor 9, Damaged wiring or connectors in the sensor circuit, 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
P0C8C 2016 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 9 Circuit Erratic.
Common causes
Common causes include Faulty Hybrid/EV Battery Temperature Sensor 9, Damaged wiring or connectors in the sensor circuit, 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 12, 2024
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Code P0C8C 2016 GMC Sierra Description

The diagnostic trouble code P0C8C for a 2016 GMC Sierra indicates a fault in the Hybrid/EV Battery Temperature Sensor 9 Circuit, specifically that the sensor's signal is erratic. The hybrid/EV battery temperature sensor plays a crucial role in monitoring the temperature of the high-voltage battery pack in hybrid and electric vehicles. It ensures that the battery operates within a safe temperature range to prevent overheating and potential damage.

OBDII Code P0C8C 2016 GMC Sierra - Hybrid/EV Battery Temperature Sensor 9 Circuit Erratic
P0C8C 2016 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 9 Circuit Erratic

Common Causes of P0C8C 2016 GMC Sierra

  1. Faulty Hybrid/EV Battery Temperature Sensor 9
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or poor connections in the sensor circuit
  4. Issues with the vehicle's hybrid or electric propulsion system control module
  5. Environmental factors affecting the sensor's performance, such as extreme temperatures or moisture

Symptoms of P0C8C 2016 GMC Sierra

  1. Reduced fuel efficiency
  2. Loss of power or acceleration
  3. Irregular battery charging behavior
  4. Illumination of the hybrid/EV system warning light
  5. Inconsistent hybrid system operation

How to Fix P0C8C 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the erratic sensor signal using a diagnostic scanner to retrieve freeze frame data and live sensor data.
  2. Inspect the Hybrid/EV Battery Temperature Sensor 9 and its wiring for any signs of damage, corrosion, or loose connections. Replace or repair any faulty components as needed.
  3. Clear the diagnostic trouble codes from the vehicle's computer and reset the system to see if the issue persists.
  4. Test drive the vehicle to verify that the sensor circuit is functioning correctly and that the symptoms associated with the code have been resolved.
  5. If the problem persists, further diagnosis may be required to identify and address any underlying issues with the hybrid or electric propulsion system control module.

Cost to Fix P0C8C 2016 GMC Sierra

The typical repair costs for addressing the P0C8C code on a 2016 GMC Sierra can range from $200 to $500, depending on the extent of the issue and the specific components that need to be replaced. This estimate includes the cost of parts such as the Hybrid/EV Battery Temperature Sensor 9 and any necessary labor. However, it is important to note that actual repair costs may vary based on factors such as the location of the repair shop, the make and model of the vehicle, and the expertise of the technician. Customers should consult with their local auto repair shops to obtain a more accurate estimate for this 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.

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