[SOLVED] U2611 Code: How To Fix Communication Loss In Hybrid Transmission

The automobile fault code U2611 indicates a problem with the Auxiliary Transmission Fluid Pump Control Module or the HybridEV Powertrain Control Module. The symptom is an illuminated Engine Light or Service Engine Soon Warning Light.

The cause could be a faulty control module, open or shorted harness, or poor electrical connection.

The repair is of moderate difficulty and involves visually inspecting the wiring harness and connectors for damage or corrosion. The fault code can be interpreted by checking the possible causes listed above.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the u2611 fault code.

Here are the symptoms to look out for:

  • The automobile fault code U2611 has the following symptoms: Engine Light ON, Service Engine Soon Warning Light ON.

The automobile fault code u2611 can be caused by a range of issues, including faulty control modules and poor electrical connections.

  • The automobile fault code U2611 can be caused by a faulty Auxiliary Transmission Fluid Pump Control Module.
  • It can also be caused by an open or shorted Auxiliary Transmission Fluid Pump Control Module harness.
  • Another cause can be a poor electrical connection in the Auxiliary Transmission Fluid Pump Control Module circuit.
  • Lastly, a faulty Hybrid/EV Powertrain Control Module can also trigger the U2611 fault code.

To fix the u2611 automobile fault code, check the possible causes and inspect the related wiring harness, connectors, and components for damage.

  • To fix the automobile fault code u2611, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The factors that influence the cost of fixing the automobile fault code U2611 are the estimated repair time and the hourly rate charged by the auto repair shop.

The estimated repair time for this fault code is 1.0 hour.

The hourly rate charged by most auto repair shops ranges between $75 and $150 per hour.

These factors play a crucial role in determining the overall cost of fixing the U2611 fault code.

The u2611 fault code is related to the loss of communication with the HybridEV Powertrain Control Module 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 HybridEV Powertrain Control Module. If this message is not received within 400 ms, the Battery Energy Control Module increases its fail count.

The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received within 400 ms.

The code indicates that the Auxiliary Transmission Fluid Pump Control Module has lost communication with the HybridEV Powertrain Control Module.

What are the possible causes of the u2611 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u2611 fault code. This code is caused by a faulty auxiliary transmission fluid pump control module, an open or shorted harness, poor electrical connection in the module circuit, or a faulty hybrid/EV powertrain control module. To fix this issue, inspect the wiring harness and connectors for any damage or corrosion, and check for broken or bent pins.

How can I visually inspect the related wiring harness and connectors to fix the u2611 fault code?

If you’re experiencing the u2611 fault code, which is indicated by the engine light being on or the service engine soon warning light, there are a few things you can do to fix it. Firstly, check the possible causes, which include a faulty auxiliary transmission fluid pump control module, an open or shorted harness, poor electrical connection, or a faulty hybrid/EV powertrain control module. To visually inspect the related wiring harness and connectors, look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

Is a faulty Hybrid/EV Powertrain Control Module a common cause of the u2611 fault code?

The u2611 fault code can be caused by a faulty Hybrid/EV Powertrain Control Module, among other things. This can result in the engine light turning on or a service engine soon warning light. To fix the issue, it is recommended to check the possible causes listed, visually inspect the wiring harness and connectors, and look for any damaged components or corroded pins.

u2611 error fault code explained

If your engine light is on, it could be due to a faulty Auxiliary Transmission Fluid Pump Control Module or HybridEV Powertrain Control Module. Check for open or shorted harnesses, poor electrical connections, and damaged components.

Visually inspect wiring harnesses and connectors for broken, bent, pushed out, or corroded pins.

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