Adding steering wheel radio controls??? - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-11-2007, 04:48 PM   #21
Member
Posts like a V-Tak
 
Join Date: Feb 2006
Posts: 65
Thanks: 0
Thanked 0 Times in 0 Posts
bonnyguy is on a distinguished road
Default Wiring update

With some slightly warmer weather here in PA I pulled the knee paneling off to take a look to see if the wiring is there for the JL4 option and at least for my car it is not :(

The necessary wiring is there from the body to column connector to the column but not before the body connector which leads me to believe that GM uses a different harness and maybe even a different head unit for cars equipped with steering wheel controls?

The necessary wiring from the body to column connector ends in a loose connector slightly up and above the column. You can see it if you move the rubber panel that is above the knee panel.

My mother in law has a Buick with steering wheel controls that is 1 year newer then my SE so I might have to pull the knee panel from it and see if the JL4 wiring is there.

Hope this info helps!
bonnyguy is offline   Reply With Quote
Old 02-19-2007, 03:22 AM   #22
Senior Member
Posts like a Corvette
 
Join Date: Nov 2006
Location: Alberta, Canada
Posts: 1,446
Thanks: 0
Thanked 0 Times in 0 Posts
ddalder is on a distinguished road
Default

First of all, you won't find any wiring that goes from the steering column to the radio for steering wheel controls.

These controls ultimately connect to the Dash Integration Module (DIM). The DIM determines which button is pressed (I won't elaborate here as to exactly how), and sends a signal to the radio over the Class 2 Serial Data Bus.

In order to connect steering wheel controls, you will need the correct Inflatable Restraint Steering Wheel Module Coil (as the connection is made via this part), the steering wheel controls themselves and the correct steering wheel. All the wiring from the DIM to the steering column will also have to exist. As I recall, you will also need to have your DIM correctly programmed (via a Tech 2 scan tool) to tell it the controls exist. There is nothing that needs to be done on the part of the radio itself. The HU is the same with or without controls. If it sees a message on the Class 2 Serial Data Bus it will process it accordingly.

Here is a schematic of the Steering Wheel Controls for a 2004 Bonneville:



Not sure where the discussion about RPO JL4 came from, but this really has nothing to do with steering wheel controls. If you want to know if the (pre)wiring exists, check for conductors at cavities C11 (Remote Radio Control Supply Voltage) and D8 (Steering Wheel Controls Signal) of C202. They should be purple and dark blue wires respectively.
ddalder is offline   Reply With Quote
Old 02-19-2007, 08:53 AM   #23
Member
Posts like a V-Tak
 
Join Date: Feb 2006
Posts: 65
Thanks: 0
Thanked 0 Times in 0 Posts
bonnyguy is on a distinguished road
Default

So if I understand correctly...if I have the purple and dark blue wires at connector 202 then it i simply a matter of adding the wheel with controls and the coil?

I assume that this connector is one of the 2 big ones under the knee panel?

I guess I could always add these wires if they did not exist.

The wires from the DIM to the radio already exist then?

Thanks for the great info!
bonnyguy is offline   Reply With Quote
Old 02-19-2007, 04:45 PM   #24
Senior Member
Posts like a Corvette
 
Join Date: Nov 2006
Location: Alberta, Canada
Posts: 1,446
Thanks: 0
Thanked 0 Times in 0 Posts
ddalder is on a distinguished road
Default

It should be the BLACK 40 cavity connector behind the knee bolster. There should also be a NATURAL colour connector (C200) beside it. Rows A & D both have 8 cavities each and rows B & C each have 12 cavities. A & D are the two OUTSIDE rows while B & C are the two INSIDE rows. You will also notice that rows A & D have a mix of large and small electrical terminals while rows B & C are all of the smaller sized terminals.

To see if the wiring exists to the DIM, check the FEMALE half of the connector. You need to look specifically at cavities C11 and D8 because there will also be DK BLU and PPL wires in other cavities of this same connector for other functions.

You should see small letters/numbers embossed on the plastic housings which will allow you to determine the correct cavities.

As for the wiring from the DIM to the RADIO, there is no question that it will exist. It WILL be there. This is the Class 2 Serial Data Bus and it links several vehicle components in order that they can talk to each other. The DIM and RADIO are only two of several which communicate with each other.
ddalder is offline   Reply With Quote
Old 02-24-2007, 03:18 PM   #25
Member
Posts like a V-Tak
 
Join Date: Feb 2006
Posts: 65
Thanks: 0
Thanked 0 Times in 0 Posts
bonnyguy is on a distinguished road
Default

Well I checked and I do have the purple and dark blue wires in D8 and C11 positions of the black connector so it looks like the wiring is there from column to DIM.

I will have to phone the dealer now and see what they will charge to program the DIM with this option.

Thanks for the info. It was very helpful!
bonnyguy is offline   Reply With Quote
Old 02-24-2007, 04:15 PM   #26
Senior Member
Posts like a Corvette
 
Join Date: Nov 2006
Location: Alberta, Canada
Posts: 1,446
Thanks: 0
Thanked 0 Times in 0 Posts
ddalder is on a distinguished road
Default

Quote:
Originally Posted by bonnyguy
Well I checked and I do have the purple and dark blue wires in D8 and C11 positions of the black connector so it looks like the wiring is there from column to DIM.

I will have to phone the dealer now and see what they will charge to program the DIM with this option.

Thanks for the info. It was very helpful!
That'* Great Sometimes the best way to win the battle is a little at a time. I'm curious to know how the rest goes.
ddalder is offline   Reply With Quote
Old 03-05-2007, 05:36 PM   #27
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2005
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
GMCSonoma is on a distinguished road
Default

Well, I can sum this up in one word....




SUCESS!!!!



All it took was the replacement of the SIR Coil assy, as it had the wiring needed to run the length of the column from the dash harness to the new steering wheel. The dash harness had the radio plug taped up in it (Thank God!)!!!!! Another plus was the fact the air bag was the same for the different steering wheels!

Thanks again to custom88, bonnyguy & ddalder who responded and made this all possible for me to explore!!!


So to sum it up....new steering wheel & new SIR coil with UK3 option!!!
GMCSonoma is offline   Reply With Quote
Old 03-05-2007, 05:47 PM   #28
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

glad to hear, that it all worked out
1993 SLE is offline   Reply With Quote
Old 03-05-2007, 08:00 PM   #29
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2005
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
GMCSonoma is on a distinguished road
Default

No reprogram of the DIM was needed either...just plugged it in & it worked!!!

I only wish I would have done this 2 years ago!
GMCSonoma is offline   Reply With Quote
Old 03-05-2007, 09:37 PM   #30
Senior Member
Posts like a 4 Banger
 
Join Date: Jan 2007
Location: Just outside of Syracuse NY
Posts: 148
Thanks: 0
Thanked 0 Times in 0 Posts
windshield_time is on a distinguished road
Default

Sweet,

I shall begin searching for a wheel and maybe off the same donor car I can get the SIR coil. (what the heck does that look like ?)
windshield_time is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
adding steering wheel audio controls Marik_bathory Audio (and aftermarket electronics) 3 05-06-2007 03:05 PM
Steering Wheel Radio Controls not working. chuck03 Audio (and aftermarket electronics) 3 08-01-2006 11:30 PM
'92-'95 steering wheel radio controls question bill buttermore Detailing & Appearance 7 12-10-2004 10:34 PM
1993 Bonneville SSE Steering Wheel Radio Controls??????? Str8pimpin 1992-1999 3 09-11-2004 02:49 AM
steering wheel radio controls - FYI billha 1992-1999 14 03-08-2003 12:24 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:02 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.