U2612 Cadillac Code - Battery Charger 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 Battery Charger Control Module, Battery Charger Control Module harness is open or shorted, Battery Charger 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
- U2612 Cadillac indicates Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2.
- Common causes
- Common causes include Faulty Battery Charger Control Module, Battery Charger Control Module harness is open or shorted, Battery Charger 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 U2612 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 U2612 Cadillac?
- Faulty Battery Charger Control Module
- Battery Charger Control Module harness is open or shorted
- Battery Charger Control Module circuit poor electrical connection
- Faulty Hybrid/EV Powertrain Control Module 2
How to Fix the DTC U2612 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 U2612 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 U2612 Cadillac Code
1. What are the common symptoms of OBDII code U2612 in a Cadillac?
- Common symptoms include the battery not charging properly, loss of power in the hybrid system, and warning lights illuminating on the dashboard.
2. What usually causes the OBDII code U2612 in a Cadillac?
- The code U2612 is typically triggered when there is a communication failure between the Battery Charger Control Module and the Hybrid/EV Powertrain Control Module 2.
3. How can I diagnose the OBDII code U2612 in my Cadillac?
- Diagnosing the code U2612 may require using a professional OBDII scanner to retrieve the specific fault codes and checking the wiring and connections between the modules for any issues.
4. Can a weak battery cause the OBDII code U2612 to appear in a Cadillac?
- Yes, a weak or failing battery can sometimes lead to communication errors between modules, triggering the U2612 code in a Cadillac.
5. Is it safe to continue driving with the OBDII code U2612 in a Cadillac?
- It is not recommended to continue driving with the U2612 code present, as it can lead to further issues with the hybrid system and potentially cause damage.
6. How can I repair the OBDII code U2612 in my Cadillac?
- Repairing the U2612 code may involve checking and repairing any damaged wiring, ensuring proper connections between modules, and potentially replacing faulty components.
7. Do I need specialized tools to reset the OBDII code U2612 in a Cadillac?
- Resetting the U2612 code may require a professional OBDII scanner to clear the codes and reset the system after any necessary repairs have been made.
8. Are there any recalls or technical service bulletins related to the OBDII code U2612 in Cadillac vehicles?
- It is advisable to check with a Cadillac dealership or official sources for any recalls or technical service bulletins related to the U2612 code in your specific vehicle model.
9. Can extreme weather conditions contribute to the appearance of the OBDII code U2612 in a Cadillac?
- Yes, extreme weather conditions or exposure to moisture can sometimes lead to communication issues between modules, triggering the U2612 code.
10. How can I prevent the OBDII code U2612 from reappearing in my Cadillac?
- To prevent the U2612 code from reappearing, it's essential to regularly maintain the vehicle, ensure proper battery health, and address any communication issues promptly.
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