U2614 Code - Drive Motor 2 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 Drive Motor 2 Control Module, Drive Motor 2 Control Module harness is open or shorted, Drive Motor 2 Control Module 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
- U2614 indicates Drive Motor 2 Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2.
- Common causes
- Common causes include Faulty Drive Motor 2 Control Module, Drive Motor 2 Control Module harness is open or shorted, Drive Motor 2 Control Module 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 U2614 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 U2614?
- Faulty Drive Motor 2 Control Module
- Drive Motor 2 Control Module harness is open or shorted
- Drive Motor 2 Control Module circuit poor electrical connection
- Faulty Hybrid/EV Powertrain Control Module 2
How to Fix the DTC U2614?
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 U2614 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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Information for Specific Makes
- U2614 Buick — Drive Motor 2 Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2
- U2614 Cadillac — Drive Motor 2 Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2
- U2614 Chevrolet — Drive Motor 2 Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2
- U2614 GMC — Drive Motor 2 Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2
Frequently Asked Questions about U2614 Code
1. What are common symptoms of OBDII code U2614?
- Common symptoms include loss of power while driving, reduced fuel efficiency, and potential stalling or hesitation of the vehicle.
2. What does OBDII code U2614 indicate?
- This code indicates that the Drive Motor 2 Control Module has lost communication with the Hybrid/EV Powertrain Control Module 2 in a hybrid or electric vehicle.
3. What are possible causes of OBDII code U2614?
- Possible causes include wiring issues, loose connections, faulty control modules, software glitches, or issues with the hybrid/EV powertrain system.
4. How can I diagnose OBDII code U2614?
- Diagnosing this code may require checking the wiring and connections between the control modules, performing a software update, and using a diagnostic scanner to communicate with the modules.
5. Can I still drive my vehicle with OBDII code U2614?
- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potentially unsafe driving conditions.
6. What are some repair tips for OBDII code U2614?
- Repair tips may include checking and repairing any damaged wiring, ensuring all connections are secure, and following manufacturer-specific diagnostic procedures.
7. How serious is OBDII code U2614?
- This code should be addressed promptly to prevent further issues with the hybrid/EV powertrain system and ensure the vehicle operates safely.
8. Can OBDII code U2614 be cleared/reset?
- Yes, the code can be cleared/reset using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from returning.
9. Will OBDII code U2614 cause my vehicle to fail an emissions test?
- Yes, this code can cause a vehicle to fail an emissions test, as it indicates a malfunction in the hybrid/EV powertrain system that can impact emissions control.
10. How much does it typically cost to repair OBDII code U2614?
- Repair costs for this code can vary depending on the underlying issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.
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