AutoCodes – GMC – P0ACD 2018 GMC Sierra

P0ACD 2018 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 3 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: P0ACD 2018 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 3 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 1,080

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 P0ACD 2018 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 P0ACD 2018 GMC Sierra - Hybrid/EV Battery Temperature Sensor 3 Circuit High Voltage - AutoCodes.com — P0ACD 2018 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 3 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0ACD 2018 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 P0ACD 2018 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 P0ACD 2018 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 P0ACD 2018 GMC Sierra 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 P0ACD 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P0ACD in a 2018 GMC Sierra Hybrid/EV?

The common symptoms of code P0ACD include the check engine light illuminating on the dashboard, reduced hybrid/EV system performance, and potential issues with battery temperature regulation.

2. What does the OBDII code P0ACD indicate in a 2018 GMC Sierra Hybrid/EV?

Code P0ACD specifically refers to an issue with Hybrid/EV Battery Temperature Sensor 3 Circuit High Voltage, signaling a potential problem with the temperature sensor in the hybrid/EV battery system.

3. What are the possible causes of OBDII code P0ACD in a 2018 GMC Sierra Hybrid/EV?

The causes of code P0ACD can include a faulty temperature sensor, wiring issues in the sensor circuit, software glitches, or problems with the hybrid/EV battery system itself.

4. How can I diagnose the OBDII code P0ACD in my 2018 GMC Sierra Hybrid/EV?

Diagnosing code P0ACD typically involves using an OBDII scanner to retrieve the code, inspecting the Hybrid/EV Battery Temperature Sensor 3 Circuit, checking the sensor's wiring for damage or loose connections, and testing the battery system for any abnormalities.

5. What are the potential risks of driving with OBDII code P0ACD unresolved in a 2018 GMC Sierra Hybrid/EV?

Continuing to drive with an unresolved P0ACD code can lead to further damage to the hybrid/EV battery system, reduced fuel efficiency, and potential safety hazards due to compromised battery temperature regulation.

6. Can I repair OBDII code P0ACD in my 2018 GMC Sierra Hybrid/EV myself?

While some DIY enthusiasts may attempt to address code P0ACD by checking and repairing sensor wiring or connections, it is recommended to consult a professional mechanic or dealership for accurate diagnosis and repair of complex hybrid/EV systems.

7. Is resetting the OBDII code P0ACD in a 2018 GMC Sierra Hybrid/EV sufficient to resolve the issue?

Simply resetting the code may temporarily turn off the check engine light, but it will not fix the underlying problem causing code P0ACD. Proper diagnosis and repair are necessary to address the root cause and ensure the issue is resolved.

8. How much does it cost to repair OBDII code P0ACD in a 2018 GMC Sierra Hybrid/EV?

The cost of repairing code P0ACD can vary depending on the specific issue causing the fault, the labor rates of the service provider, and the cost of any replacement parts needed. It is recommended to obtain quotes from reputable mechanics or dealerships for an accurate estimate.

9. Are there any preventive maintenance tips to avoid OBDII code P0ACD in a 2018 GMC Sierra Hybrid/EV?

Regularly servicing and inspecting the hybrid/EV battery system, following the manufacturer's maintenance schedule, and addressing any issues promptly can help prevent code P0ACD and other related problems in your vehicle.

10. Can OBDII code P0ACD in a 2018 GMC Sierra Hybrid/EV be related to other hybrid/EV system faults?

Yes, code P0ACD may be interconnected with other hybrid/EV system faults, such as issues with battery cooling systems, charging systems, or overall battery health. It is crucial to address all related faults to ensure the proper functioning of the hybrid/EV system.