U0109 Code after Onstar module removal - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

imponte · 12-05-2020, 09:44 AM

Hi. I had a cell code which is u0109 Lost Communication with fuel pump control module after remove onstar module due to battery leak. I had a battery leak test and everything seems good after onstar removal, but now i have a cell code. There is a link, he said that it may occurs.
https://www.moderncamaro.com/threads...-onstar.33509/
6. The small colored connectors are antennas. Unplug them by gently prying the side of the inset clip out with a small flat screwdriver and pull the connector off. Without antennas, the box can't send/receive data. DON'T unplug J1 through J4! You'll throw "Lost Communication with fuel pump control module codes." There were no J3 or J4 connectors on my car, if yours has them, leave them alone.

But i dont wanna put it back due to battery parasitic loss. What can i do?

imponte · 12-05-2020, 10:05 AM

It looks like permanent code, can i delete it? If i can delete, Would it be a problem?

Rock-It Man · 12-05-2020, 10:47 AM

If the Onstar module is operating correctly, it should not cause a battery problem.

I wonder what the root cause of your problem is?

imponte · 12-05-2020, 11:03 AM

Quote:

Originally Posted by Rock-It Man

If the Onstar module is operating correctly, it should not cause a battery problem.

I wonder what the root cause of your problem is?

I think onstar module not going into sleep mode, and keep searching for satellite or something. So,i think my onstar module was defective somehow. Im not live in USA. So hard to find a new onstar module. And dont wanna pay for it. I haven't used this feature even once

Machh5 · 12-05-2020, 08:37 PM

You need to put the onstar unit back in but before you do remove the cell phone connection inside. The ant you unplugged is a dummy, onstar uses a cell phone with a back up battery good for 4 years. Inside you can unplug the cell phone. Open the unit up and you will find a small buss connector with pins connecting the cell phone to the unit. Simply unplug the the connector from the the 2 units connecting them and close it back up and plug it back in. onstar will no longer work but you won't get the errors. !st thing I did to mine when I bought it.

imponte · 12-06-2020, 09:03 AM

Quote:

Originally Posted by Machh5

You need to put the onstar unit back in but before you do remove the cell phone connection inside. The ant you unplugged is a dummy, onstar uses a cell phone with a back up battery good for 4 years. Inside you can unplug the cell phone. Open the unit up and you will find a small buss connector with pins connecting the cell phone to the unit. Simply unplug the the connector from the the 2 units connecting them and close it back up and plug it back in. onstar will no longer work but you won't get the errors. !st thing I did to mine when I bought it.

I dont wanna put it back because it drains my battery. After removed no more battery leak. I think i have a faulty onstar module. How can i delete this engine light?

Machh5 · 12-06-2020, 10:27 PM

Try unplugging the cell phone and see if it still drains. Other than that I don't know.

12-05-2020, 09:44 AM	#1
imponte Drives: '10 Camaro SS Join Date: May 2019 Location: Turkey Posts: 62	U0109 Code after Onstar module removal Hi. I had a cell code which is u0109 Lost Communication with fuel pump control module after remove onstar module due to battery leak. I had a battery leak test and everything seems good after onstar removal, but now i have a cell code. There is a link, he said that it may occurs. https://www.moderncamaro.com/threads...-onstar.33509/ 6. The small colored connectors are antennas. Unplug them by gently prying the side of the inset clip out with a small flat screwdriver and pull the connector off. Without antennas, the box can't send/receive data. DON'T unplug J1 through J4! You'll throw "Lost Communication with fuel pump control module codes." There were no J3 or J4 connectors on my car, if yours has them, leave them alone. But i dont wanna put it back due to battery parasitic loss. What can i do?

12-05-2020, 10:05 AM	#2
imponte Drives: '10 Camaro SS Join Date: May 2019 Location: Turkey Posts: 62	It looks like permanent code, can i delete it? If i can delete, Would it be a problem?

12-05-2020, 10:47 AM	#3
Rock-It Man 376 cubic inches of fun Drives: 2023 Camaro ZL1 A10 Join Date: Jul 2010 Location: MA Posts: 4,033 View My Garage	If the Onstar module is operating correctly, it should not cause a battery problem. I wonder what the root cause of your problem is?

12-05-2020, 08:37 PM	#5
Machh5 Account Suspended Drives: Camaro Join Date: Jun 2020 Location: US Posts: 120	You need to put the onstar unit back in but before you do remove the cell phone connection inside. The ant you unplugged is a dummy, onstar uses a cell phone with a back up battery good for 4 years. Inside you can unplug the cell phone. Open the unit up and you will find a small buss connector with pins connecting the cell phone to the unit. Simply unplug the the connector from the the 2 units connecting them and close it back up and plug it back in. onstar will no longer work but you won't get the errors. !st thing I did to mine when I bought it.

12-06-2020, 10:27 PM	#7
Machh5 Account Suspended Drives: Camaro Join Date: Jun 2020 Location: US Posts: 120	Try unplugging the cell phone and see if it still drains. Other than that I don't know.