U2615 Cadillac Code - Auxiliary Transmission Fluid Pump 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 Auxiliary Transmission Fluid Pump Control Module, Auxiliary Transmission Fluid Pump Control Module harness is open or shorted, Auxiliary Transmission Fluid Pump 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
- U2615 Cadillac indicates Auxiliary Transmission Fluid Pump Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2.
- Common causes
- Common causes include Faulty Auxiliary Transmission Fluid Pump Control Module, Auxiliary Transmission Fluid Pump Control Module harness is open or shorted, Auxiliary Transmission Fluid Pump 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 U2615 Cadillac 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 U2615 Cadillac?
- Faulty Auxiliary Transmission Fluid Pump Control Module
- Auxiliary Transmission Fluid Pump Control Module harness is open or shorted
- Auxiliary Transmission Fluid Pump Control Module circuit poor electrical connection
- Faulty Hybrid/EV Powertrain Control Module 2
How to Fix the DTC U2615 Cadillac?
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 U2615 Cadillac 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 U2615 Cadillac Code
1. What are common symptoms of OBDII code U2615 in a Cadillac?
Common symptoms include transmission shifting issues, reduced fuel efficiency, and warning lights on the dashboard.
2. What can cause the OBDII code U2615 in a Cadillac to trigger?
The code U2615 is usually triggered when there is a communication error between the auxiliary transmission fluid pump control module and the hybrid/EV powertrain control module 2.
3. How can I diagnose the OBDII code U2615 in my Cadillac?
Diagnosing this code typically involves using a professional OBDII scanner to retrieve the specific error codes, checking the wiring connections, and inspecting for any signs of damage or loose connections.
4. Can a faulty auxiliary transmission fluid pump cause the OBDII code U2615 in a Cadillac?
Yes, a faulty auxiliary transmission fluid pump or control module can be a contributing factor to triggering the code U2615 in a Cadillac.
5. How serious is the OBDII code U2615 in a Cadillac?
While the vehicle may still be operable with this code present, it is important to address it promptly to prevent potential transmission issues and further damage to the hybrid/EV system.
6. Are there any simple repairs I can try to fix the OBDII code U2615 in my Cadillac?
Simple repairs may include checking and cleaning the wiring connections, resetting the fault codes, or replacing the auxiliary transmission fluid pump control module if necessary.
7. Should I continue driving my Cadillac with the OBDII code U2615 present?
It is recommended to avoid prolonged driving with the code U2615 present to prevent potential transmission problems and to ensure the overall health of the vehicle's hybrid/EV system.
8. How much does it typically cost to repair the OBDII code U2615 in a Cadillac?
The cost of repairing the OBDII code U2615 can vary depending on the specific issue, but it may involve replacing components such as the auxiliary transmission fluid pump control module or addressing any wiring issues.
9. Can a DIY enthusiast fix the OBDII code U2615 in a Cadillac?
While some basic troubleshooting and repairs can be attempted by a DIY enthusiast, it is often recommended to seek professional help, especially when dealing with complex hybrid/EV systems.
10. How can I prevent the OBDII code U2615 from recurring in my Cadillac?
Regular maintenance, including checking the transmission fluid levels, inspecting wiring connections, and addressing any issues promptly, can help prevent the code U2615 from recurring in your Cadillac.
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