I hope you aren't gonna splice into that harness. Just buy a module and keep your chimes and won't have to splice into the car harness.

 

Tooter1; It might be a little late that post is almost a month old!
Good try to save the harness from a chop job.

 

Radio C1 (UQ3)
Pin Wire Color Circuit No. Function

1 RD/WH 1140 Battery Positive Voltage

2 GY 8 Instrument Panel Lamps Dimmer Switch Signal

3 -- -- Not Used

4 L-GN 1948 Right Front Low Level Audio Signal (-)

5 L-GN/WH 512 Right Front Low Level Audio Signal (+)

6 D-GN 1947 Left Front Low Level Audio (-)

7 TN 511 Left Front Low Level Audio Signal (+)

8 BK/WH 651 Ground

9 D-GN 5060 Low Speed GMLAN Serial Data (Early Production)

D-GN/WH 5060 Low Speed GMLAN Serial Data (Late Production)

10 -- -- Not Used

11 D-BU 1796 Steering Wheel Control Signal (UK3)

12-14 -- -- Not Used



Radio C2 (UQ3)
Pin Wire Color Circuit No. Function

1 BN/WH 367 Left Audio Signal (+) (U2K)

2 D-GN/WH 368 Right Audio Signal (+) (U2K)

3 PK 314 Radio On Signal

4 D-BU 546 Right Rear Low Level Audio Signal (+)

5 TN 1946 Right Rear Low Level Audio Signal (-)

6 BN/WH 599 Left Rear Low Level Audio Signal (+)

7 BN 1999 Left Rear Low Level Audio Signal (-)

8 PK/BK 2062 Cellular Telephone Voice Signal (UE1)

9 TN/WH 372 Audio Common (U2K)

10-13 -- -- Not Used

14 WH/BK 644 10-Volt Reference (UK3)

15 L-GN 1011 Remote Radio Control Signal

16 OG/BK 2061 Cellular Telephone Voice Low Reference (UE1)

 

Chevy Mgr,

I have a question about the wireing diagram(s) I see above. I notieced there is a
11 D-BU 1796 Steering Wheel Control Signal (UK3)
.

Would this be a place where I would see a push of one of the radio steering wheel buttons. (Volume Up?)

Would all the radio steering wheel buttons be on this wire?

How are the signals being passed by resistance differences along this wire?

Reason I as, I have the GMOS-LAN-04. The harness currently doesn't have a wire in the plug at this location, so it isn't passing this information along, but I would like to add an additional wire and use it to pass along the steering wheel buttons presses.

There is a device that can capture this resistance differences when each button is pressed. I would like to use this with my Carputer.

Any suggestions on how I could pick up this signal if the above is not correct? I am trying to not make an cuts / splices in the original wiring harness.

Roger

 

If anyone is wondering where to tap into when installing a line out converter for the Lt hhr with stock pioneer speakers I would recomend using the low level audio signal from either the front 2 speakers or rear 2 speakers.

 

Is it the same for a 2009 ls last 6 is 577278

 

Check the date on this thread. It's from over 9 years ago.
Besides, ChevyMgr is not on the site anymore.

 

Closing this thread - thanks FMG.