AutoCodes – GMC – P0BC5 2015 GMC Sierra

P0BC5 2015 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 5 Circuit High Voltage

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: P0BC5 2015 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 5 Circuit High Voltage.
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.

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Code Popularity 197

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 22, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0BC5 2015 GMC Sierra Description

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. The non-serviceable battery temperature sensors are located within the battery sections. Two temperature sensors are located in each battery section. The temperature sensor is a variable resistor that measures the temperature of the battery cell group. The hybrid/EV interface control module supplies 5 V to the signal circuit and is a ground for the low reference circuit. The battery temperature sensor resistance changes with battery temperature. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases.
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 less than -69°C (-92°F).

OBDII Code P0BC5 2015 GMC Sierra - Hybrid/EV Battery Temperature Sensor 5 Circuit High Voltage - AutoCodes.com — P0BC5 2015 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 5 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0BC5 2015 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 P0BC5 2015 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 P0BC5 2015 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.

Need more information about the P0BC5 2015 GMC Sierra code?

Need more information on how to fix the P0BC5 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0BC5 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P0BC5 2015 GMC Sierra Code

1. What does the OBDII code P0BC5 mean for a 2015 GMC Sierra?

The P0BC5 code indicates an issue with the Hybrid/EV Battery Temperature Sensor 5 Circuit, specifically detecting a high voltage condition.

2. What are the common symptoms of the P0BC5 code in a 2015 GMC Sierra?

Common symptoms include reduced hybrid or EV performance, warning lights on the dashboard, and possible overheating or improper regulation of the battery system.

3. What causes the P0BC5 code to appear?

This code is commonly caused by a faulty battery temperature sensor, a damaged wiring harness, poor electrical connections, or issues within the hybrid battery control module.

4. Can I drive my 2015 GMC Sierra with the P0BC5 code?

Itâ€™s not recommended to drive with this code, as the battery system may overheat or operate inefficiently, potentially leading to further damage.

5. How is the P0BC5 code diagnosed?

A mechanic will use a scan tool to confirm the code, inspect the affected temperature sensor and wiring, and test the circuit for continuity or voltage irregularities.

6. What repairs can fix the P0BC5 code?

Repairs may include replacing the battery temperature sensor, repairing or replacing damaged wiring, and ensuring proper connections to the hybrid battery control module.

7. How much does it cost to fix the P0BC5 code on a 2015 GMC Sierra?

Repair costs can range from $150 to $500 or more, depending on whether the issue is with the sensor, wiring, or control module.

8. Can a failing battery cause the P0BC5 code?

Yes, a failing or damaged hybrid battery can sometimes trigger this code if it affects the temperature sensor's performance.

9. Is the P0BC5 code specific to GMC vehicles?

No, the P0BC5 code is a generic OBDII code that can appear in other hybrid or EV vehicles, though specific diagnostics and repairs may vary.

10. How can I prevent the P0BC5 code from occurring again?

Regular maintenance of the hybrid battery system, inspecting wiring and sensors for damage, and avoiding extreme operating conditions can help prevent this issue.