AutoCodes – GMC – P0BC4 2016 GMC Sierra

P0BC4 2016 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 5 Circuit Low 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: P0BC4 2016 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 5 Circuit Low 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 155

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0BC4 2016 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 greater than 160°C (320°F).

OBDII Code P0BC4 2016 GMC Sierra - Hybrid/EV Battery Temperature Sensor 5 Circuit Low Voltage - AutoCodes.com — P0BC4 2016 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 5 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0BC4 2016 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 P0BC4 2016 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 P0BC4 2016 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 P0BC4 2016 GMC Sierra code?

Need more information on how to fix the P0BC4 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0BC4 2016 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 P0BC4 2016 GMC Sierra Code

1. What does the OBDII code P0BC4 mean on a 2016 GMC Sierra?

P0BC4 indicates a low voltage issue in the Hybrid/EV Battery Temperature Sensor 5 circuit. This often points to a problem with the sensor, wiring, or related components.

2. What are the common symptoms of the P0BC4 code?

Symptoms may include an illuminated check engine light, reduced hybrid/EV battery performance, limited power mode, or increased battery temperature.

3. What causes the P0BC4 code to appear?

Common causes include a faulty Hybrid/EV Battery Temperature Sensor 5, damaged wiring or connectors, a malfunctioning battery control module, or a low voltage condition in the circuit.

4. Can I continue driving with the P0BC4 code?

It is not recommended to drive for long periods with this code active, as it may lead to further damage to the hybrid/EV battery system or reduced vehicle performance.

5. How is the P0BC4 code diagnosed?

A technician will use a scan tool to verify the code, inspect the temperature sensor and circuit wiring for damage or corrosion, and test for proper voltage and resistance.

6. How do I fix the P0BC4 code?

Repairs may involve replacing the Hybrid/EV Battery Temperature Sensor 5, repairing damaged wiring or connectors, or reprogramming the battery control module if necessary.

7. What tools are needed to troubleshoot the P0BC4 code?

A multimeter, OBDII scan tool, and wiring diagrams for the hybrid/EV battery system are typically required for proper diagnosis.

8. Is the P0BC4 code specific to the 2016 GMC Sierra?

While this code is common in hybrid or EV vehicles, its exact meaning and troubleshooting steps are specific to the vehicle's make and model.

9. Can a weak hybrid/EV battery cause the P0BC4 code?

A weak or failing hybrid/EV battery may contribute to this code, but the issue is primarily related to the temperature sensor circuit voltage.

10. How much does it cost to fix the P0BC4 code?

Repair costs vary depending on the issue. Replacing the temperature sensor may cost $100â€“$300, while more complex wiring or module repairs could exceed $500.