AutoCodes – GMC – P0C89 2017 GMC Sierra

P0C89 2017 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 9 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: P0C89 2017 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 9 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 353

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 P0C89 2017 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 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 P0C89 2017 GMC Sierra - Hybrid/EV Battery Temperature Sensor 9 Performance - AutoCodes.com — P0C89 2017 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 9 Performance

What does this mean?

What are the Possible Causes of the DTC P0C89 2017 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 P0C89 2017 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 P0C89 2017 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 P0C89 2017 GMC Sierra code?

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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 P0C89 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P0C89 in a 2017 GMC Sierra Hybrid/EV?

- Common symptoms include poor fuel efficiency, reduced power, and potential illumination of the check engine light.

2. What does the OBDII code P0C89 indicate in a 2017 GMC Sierra Hybrid/EV?

- The code indicates a performance issue with Hybrid/EV Battery Temperature Sensor 9.

3. What are the possible causes of OBDII code P0C89 in a 2017 GMC Sierra Hybrid/EV?

- Possible causes include a faulty temperature sensor, wiring issues, or problems with the hybrid/EV battery system.

4. How can I diagnose the OBDII code P0C89 in my 2017 GMC Sierra Hybrid/EV?

- Diagnosis involves using a diagnostic scanner to retrieve the code, inspecting the temperature sensor and related wiring, and testing the hybrid/EV battery system.

5. Is it safe to continue driving with OBDII code P0C89 in a 2017 GMC Sierra Hybrid/EV?

- It is not recommended to drive with this code as it can lead to further damage to the hybrid/EV system.

6. Can I repair OBDII code P0C89 in my 2017 GMC Sierra Hybrid/EV myself?

- While some simple repairs like sensor replacement may be possible for experienced DIYers, complex issues with the hybrid/EV system should be addressed by a professional.

7. How much does it typically cost to repair OBDII code P0C89 in a 2017 GMC Sierra Hybrid/EV?

- Repair costs can vary depending on the exact cause of the issue, but it may range from a few hundred to a couple of thousand dollars.

8. Can a faulty Hybrid/EV Battery Temperature Sensor 9 cause other problems in a 2017 GMC Sierra Hybrid/EV?

- Yes, a faulty sensor can lead to inaccurate temperature readings, affecting the overall performance and efficiency of the hybrid/EV system.

9. Are there any preventive maintenance tips to avoid OBDII code P0C89 in a 2017 GMC Sierra Hybrid/EV?

- Regularly inspecting the battery system, keeping up with maintenance schedules, and addressing any warning signs promptly can help prevent issues like P0C89.

10. How long does it take to repair OBDII code P0C89 in a 2017 GMC Sierra Hybrid/EV?

- The repair time can vary based on the exact cause of the code and the complexity of the repair, but it may take a few hours to a day for professional technicians to address the issue.