P0C8C 2014 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 9 Circuit Erratic
Quick Answer
Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly circuit poor electrical connection. 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 2014 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 9 Circuit Erratic.
- Common causes
- Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly circuit poor electrical connection.
- 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.
Code P0C8C 2014 GMC Sierra Description
Each Hybrid/EV Battery Interface Control Module communicates the temperature sensor values to the Hybrid/EV Powertrain Control Module via serial data.
The Hybrid/EV Powertrain Control Module uses the battery temperature sensors to determine the Hybrid/EV Battery Module temperature in order to control the battery cooling system operation.
The Diagnostic Trouble Code (DTC) will be set when the hybrid battery temperature sensor is intermittent or has changed by 10°C (18°F) or greater for 4 out of 5 seconds.
What are the Possible Causes of the DTC P0C8C 2014 GMC Sierra?
- Faulty Hybrid/EV Battery Assembly
- Hybrid/EV Battery Assembly harness is open or shorted
- Hybrid/EV Battery Assembly circuit poor electrical connection
- Faulty Hybrid/EV Battery Interface Control Module
How to Fix the DTC P0C8C 2014 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0C8C 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0C8C 2014 GMC Sierra Code
What does the OBDII code P0C8C mean on a 2014 GMC Sierra?
The P0C8C code indicates an issue with the Hybrid/EV Battery Temperature Sensor 9 Circuit, specifically that the sensor is sending erratic signals to the vehicle’s control module.
What are the common symptoms of the P0C8C code?
Symptoms may include an illuminated check engine light, reduced hybrid or EV performance, erratic temperature readings, or limited battery charging and discharging functions.
What causes the P0C8C code to appear?
Common causes include a faulty temperature sensor, damaged or corroded wiring or connectors in the sensor circuit, or a malfunctioning battery control module.
Can I drive my 2014 GMC Sierra with the P0C8C code?
Driving may be possible but is not recommended, as the issue could lead to reduced performance, overcharging, or overheating of the hybrid/EV battery pack.
How do I diagnose the P0C8C code?
Diagnosis involves checking the sensor and its wiring for damage, testing the sensor’s resistance, and using a scan tool to monitor temperature readings from the sensor.
How is the P0C8C code fixed?
Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the battery control module if necessary.
How much does it cost to fix the P0C8C code?
The repair cost varies, but replacing a temperature sensor typically ranges from $100 to $300, while more complex issues like wiring repairs or control module replacement may cost more.
Can a failing hybrid/EV battery cause the P0C8C code?
Yes, a failing battery may cause temperature sensor issues, but the sensor or its circuit is more likely the root cause.
Will clearing the P0C8C code fix the issue?
Clearing the code may turn off the warning temporarily, but the underlying issue must be repaired to prevent the code from returning.
Is the P0C8C code covered under warranty for a 2014 GMC Sierra?
It depends on the warranty coverage, but hybrid components often have extended warranties. Check with your dealer for specifics.
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