P0C89 GMC 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 GMC 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.
Code P0C89 GMC Description
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).
What are the Possible Causes of the DTC P0C89 GMC?
- 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 GMC?
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 GMC 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 GMC code?
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Information for Specific GMC Models
- P0C89 2014 GMC Sierra — Hybrid/EV Battery Temperature Sensor 9 Performance
- P0C89 2015 GMC Sierra — Hybrid/EV Battery Temperature Sensor 9 Performance
- P0C89 2016 GMC Sierra — Hybrid/EV Battery Temperature Sensor 9 Performance
- P0C89 2017 GMC Sierra — Hybrid/EV Battery Temperature Sensor 9 Performance
- P0C89 2018 GMC Sierra — Hybrid/EV Battery Temperature Sensor 9 Performance
Frequently Asked Questions about P0C89 GMC Code
1. What does the OBDII code P0C89 mean on a GMC vehicle?
P0C89 indicates an issue with the performance of Hybrid/EV Battery Temperature Sensor 9, which monitors the temperature of the hybrid/EV battery pack.
2. What are the symptoms of the P0C89 code?
Common symptoms include an illuminated check engine light, reduced hybrid/EV performance, overheating of the battery, or the vehicle entering limp mode.
3. What causes the P0C89 code to appear?
Possible causes include a faulty battery temperature sensor, damaged sensor wiring or connectors, a malfunctioning hybrid battery control module, or software issues.
4. Can I drive my GMC vehicle with the P0C89 code?
Driving with this code is not recommended as it can lead to further damage to the hybrid battery system and reduced vehicle performance.
5. How do I diagnose the P0C89 code?
Diagnosis involves scanning for codes, inspecting the battery temperature sensor and its wiring, checking for loose or corroded connections, and testing the hybrid battery control module.
6. How is the P0C89 code repaired?
Repairs may include replacing the faulty temperature sensor, repairing damaged wiring, cleaning corroded connectors, or reprogramming/updating the hybrid battery control module.
7. How much does it cost to fix the P0C89 code?
Repair costs vary but can range from $100 to $300 for a sensor replacement, with higher costs if additional wiring or module repairs are needed.
8. Can a software update fix the P0C89 code?
In some cases, a software update for the hybrid battery control module may resolve the issue if the problem is related to programming.
9. How can I prevent the P0C89 code from recurring?
Regular maintenance, including inspecting hybrid system components for wear or damage, can help prevent this code from recurring.
10. Do I need special tools to repair the P0C89 code?
Yes, diagnosing and repairing this code typically requires an advanced OBDII scanner capable of reading hybrid/EV system codes and specialized tools to access the battery components.
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