Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Do a complete scan of all modules. See if there are any other codes stored in any module. Also look at history codes. Let me know if you find anything.
Ok that would be the place to start. We would have to see if those codes are related to hybrid system. If so you can try and clear those codes and see if the service light turns off.
What size engine does it have?
Do you remember if they where transmission codes?
Ok. If you can scan all modules and look at history codes if possible. This post stays open for seven.
None of these are related to the hybrid system but because of these faults it can cause the certain systems to stop working. So it is possible its affecting the hybrid system even though there is no fault with it.
Based on U180f, U0074, and U0100 you might have a bad serial gateway module. These are communication codes. When communication is lost between modules these codes are set. The B1000 is also related to these codes. P215B Is a code for the vehicle speed correlation. I would focus on the communication codes first.
When there is communication problems between modules it puts certain systems in safe mode. I think that's whats going on with the hybrid system. You still have normal engine operation but hybrid light is on. You have to check the serial gateway module and the circuit to make sure it has power and grounds. I will open up the question to other techs so your able to get all info you may need.
I agree with Ivan. We need to address the communication codes. With the vehicle shut off fo at least 5 minutes. Measure the resistance at the diagnostic connector from terminals 6 - 14. What is that resistance?
Could you send a picture of the light?
The service hybrid message that comes is for a fault with the hybrid batteries. You can check under the back seat to make sure that the vents for the batteries are clean so that the air can get into the battery case and cool the batteries.
I do not know if the snap-on scanner will scan the hybrid control module for codes or data.
When they replaced the battery did they program the module?
Please take a moment to rate my service so I can get credit for my time, the question remains open for follow up even after doing so, all you need to do is return to this question if need be.
Thank you again.