Interesting Auto Stop Phenomena

[AXE]

About a month ago I did the 6.2L recall on the ZR2. When I left the dealer after the ECU reflash and removal of the Range DFM/AutoStop module, I noticed the auto stop feature was not functional the first few stops. I cycled the A button and the DIC indicated off and then on again. Still didn't work right away, but then did a couple times before I got home. I then put the Range module back in so I didn't track it anymore.

Today I picked up the Tahoe after the 6.2L recall ECU flash and once again the auto stop feature did not activate, even after I cycled the A button. I didn't put the Range module back in yet, so I'll see if it does it when my wife drives it tomorrow.

Anyway, I wonder if the ecu flash deactivated the auto stop. As for the DFM, it may have been working some on the ZR2, but I was in stop and go traffic so hard to say. The Tahoe is so quiet you cannot tell when the DFM actually kicks in.

 

[wutang61]

Truck wasn’t commanding the AC compressor was it? That will override SS.

 

[AXE]

Truck wasn’t commanding the AC compressor was it? That will override SS.

I don't know for sure, but it wasn't very hot yesterday morning. I'm sure the air was running some. I kind of forgot how it works since I have had the Range module in them.for a while.

 

[OU812]

I don't know for sure, but it wasn't very hot yesterday morning. I'm sure the air was running some. I kind of forgot how it works since I have had the Range module in them.for a while.

 

[OU812]

Very interesting. After reading this Friday. I turned off the HVAC system when driving around all weekend, Auto Stop did not function a single time. The toggle switch light is still on, so it’s active. I’m thinking there is a possibility that the ECU flash eliminated it?

 

[AXE]

My wife told me it did come on when she drove it last. She also not3d a lotnof the memory functions were not working correctly. That did not happen on mine and i thoughtbthat wad all BCM related, but who knows.

We have had a lot of rain and below normal temperatures. So i thin it had been eraditic and not functioning quite the same.

Oh well, the Range monduke is back in as of this morning, so I wont worry about it anymore.