AutoCodesChevrolet – P0BC3 2018 Chevrolet Silverado

P0BC3 2018 Chevrolet Silverado Code - Hybrid/EV Battery Temperature Sensor 5 Performance

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
P0BC3 2018 Chevrolet Silverado indicates Hybrid/EV Battery Temperature Sensor 5 Performance.
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 322
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 22, 2024
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Code P0BC3 2018 Chevrolet Silverado 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 difference between a single battery temperature sensor and an average of the other battery temperature sensors is greater than 25°C (45°F).
OBDII Code P0BC3 2018 Chevrolet Silverado - Hybrid/EV Battery Temperature Sensor 5 Performance - AutoCodes.com
P0BC3 2018 Chevrolet Silverado Code - Hybrid/EV Battery Temperature Sensor 5 Performance

What are the Possible Causes of the DTC P0BC3 2018 Chevrolet Silverado?

  • 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 P0BC3 2018 Chevrolet Silverado?

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 P0BC3 2018 Chevrolet Silverado 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 P0BC3 2018 Chevrolet Silverado code?

Need more information on how to fix the P0BC3 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0BC3 2018 Chevrolet Silverado Code

1. What does the OBDII code P0BC3 mean on a 2018 Chevrolet Silverado?

The code P0BC3 indicates an issue with the performance of Hybrid/EV Battery Temperature Sensor 5, which monitors the temperature of the hybrid/EV battery pack.

2. What are the symptoms of code P0BC3 in a 2018 Chevrolet Silverado?

Common symptoms include the check engine light turning on, reduced hybrid/EV performance, overheating of the battery, or reduced fuel efficiency.

3. What causes the P0BC3 code to be triggered?

Possible causes include a faulty temperature sensor, damaged wiring or connectors, software issues in the battery management system, or a malfunctioning hybrid/EV battery.

4. Can I drive my 2018 Chevrolet Silverado with code P0BC3?

Driving with this code is not recommended as it may lead to further damage to the hybrid/EV battery system or reduced performance.

5. How is the P0BC3 code diagnosed?

A technician will use a scan tool to check the code, inspect the temperature sensor and its wiring, and test the hybrid/EV battery system for proper operation.

6. What repairs are needed to fix code P0BC3?

Repairs may include replacing the faulty battery temperature sensor, repairing damaged wiring, updating the battery management software, or replacing the hybrid/EV battery pack if necessary.

7. How much does it cost to fix the P0BC3 code in a 2018 Chevrolet Silverado?

Repair costs can vary widely, ranging from $100–$300 for sensor replacement to over $1,000 if the hybrid/EV battery needs to be replaced.

8. Can a software update fix code P0BC3?

In some cases, a software update to the battery management system may resolve the issue if it is caused by a programming fault.

9. How can I prevent the P0BC3 code from recurring?

Regular maintenance, inspecting battery sensors and wiring, and addressing any hybrid/EV system issues promptly can help prevent this code from recurring.

10. Is the P0BC3 code covered under warranty for a 2018 Chevrolet Silverado?

The coverage depends on your vehicle’s warranty terms, but hybrid/EV battery components may be covered under an extended warranty for emissions or hybrid systems.

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