U2602 Chevrolet Code - Battery Energy Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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
- U2602 Chevrolet indicates Battery Energy Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2.
- Common causes
- Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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 U2602 Chevrolet Description
This diagnostic is used to check the loss of communication with the Hybrid/EV Powertrain Control Module 2 on a high-speed General Motors Local Area Network (GMLAN) bus. The Battery Energy Control Module supervises a periodic serial data message to check the communication status of the Hybrid/EV Powertrain Control Module 2. If this message is not received within 400 ms, the Battery Energy Control Module increases its fail count. When this fail count is over X Cal Value (7) during Y Cal Value (10 samples), the diagnostic status of this code is set to Failed and transmitted over high voltage energy high-speed GMLAN bus to the Hybrid/EV Powertrain Control Module 2.
The Diagnostic Trouble Code (DTC) will set when a supervised periodic message that includes the transmitter device availability has not been received within 400 ms.
What are the Possible Causes of the DTC U2602 Chevrolet?
- Faulty Hybrid/EV Powertrain Control Module 2
- Hybrid/EV Powertrain Control Module 2 harness is open or shorted
- Hybrid/EV Powertrain Control Module 2 circuit poor electrical connection
How to Fix the DTC U2602 Chevrolet?
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 U2602 Chevrolet 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.
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Frequently Asked Questions about U2602 Chevrolet Code
1. What are the common symptoms of OBDII code U2602 in a Chevrolet related to the Battery Energy Control Module?
- Common symptoms include poor fuel efficiency, loss of power, and possible illumination of the check engine light.
2. What could be the potential causes of OBDII code U2602 in a Chevrolet indicating a loss of communication with Hybrid/EV Powertrain Control Module 2?
- The possible causes may include a faulty control module, damaged wiring or connectors, software issues, or a weak battery.
3. How can I diagnose the Battery Energy Control Module communication issue with the Hybrid/EV Powertrain Control Module 2 in my Chevrolet?
- Diagnosis involves using a professional OBDII scanner to read the codes, checking the wiring and connectors for any damage, and verifying the battery voltage.
4. Is it safe to continue driving my Chevrolet with the U2602 code present?
- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage and potentially affect the drivability of the vehicle.
5. Can I repair the Battery Energy Control Module communication issue in my Chevrolet myself?
- While some basic checks like inspecting wiring and connectors can be done by DIY enthusiasts, complex repairs may require professional assistance to ensure proper diagnosis and resolution.
6. How much does it typically cost to repair the U2602 code in a Chevrolet at a dealership or repair shop?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $500 at a dealership or repair shop.
7. Are there any preventive maintenance tips to avoid encountering the U2602 code in a Chevrolet?
- Regularly checking and maintaining the vehicle's battery health, keeping up with software updates, and addressing any warning signs promptly can help prevent such communication issues.
8. Can a weak battery be the sole reason for triggering the U2602 code in a Chevrolet?
- While a weak battery can contribute to communication issues, it is advisable to perform a thorough diagnosis to rule out other potential causes before replacing the battery.
9. Will resetting the OBDII codes make the U2602 code disappear permanently in a Chevrolet?
- Resetting the codes may clear the warning temporarily, but if the underlying issue causing the U2602 code is not addressed, it is likely to reappear upon driving the vehicle.
10. How long does it typically take to repair the U2602 code related to the Battery Energy Control Module in a Chevrolet?
- The repair time can vary based on the complexity of the issue, but it may take anywhere from a few hours to a day for the repair to be completed at a professional repair facility.
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