Cruise control Indicator light - The 1947 - Present Chevrolet & GMC Truck Message Board Network

homemade87 · 11-10-2010, 04:45 PM

I have a lsx 5.3 engine in a 82 that is drive by wire. I have the engine and pcm from a 2004 with the cruise control. I am trying to make a cruise indicator light come on when cruise is engaged. I cant seem to figure it out. The wire from the pcm that does this is a serial data wire. Has any one done this. The location in the cluster is where the 4wd indicator was. This needs 12volt to power up. I would appreciate any help .

**Thealien** · 11-10-2010, 05:33 PM

I am also interested. A couple of guys on ls1tech are pretty knowledgeable also.

Oilbrnr · 11-11-2010, 02:28 PM

I'd bet you'll need the BCM for that...

homemade87 · 11-11-2010, 08:36 PM

The bcm does control all of those functions. I was hoping someone figured a way to pull voltage or ground from the tac module or something like that with some relays to make it work. There is some voltage from the pcm that works the clutch signal , It also works with the cruise. The tcc has voltage , It also works with the cruise to disengage. Maybe something there to work with. I was hoping someone had already figured it out.

11-10-2010, 04:45 PM	#1
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	Cruise control Indicator light I have a lsx 5.3 engine in a 82 that is drive by wire. I have the engine and pcm from a 2004 with the cruise control. I am trying to make a cruise indicator light come on when cruise is engaged. I cant seem to figure it out. The wire from the pcm that does this is a serial data wire. Has any one done this. The location in the cluster is where the 4wd indicator was. This needs 12volt to power up. I would appreciate any help .

11-10-2010, 05:33 PM	#2
Thealien Senior Member Join Date: Jun 2007 Location: Pine Ridge Florida Posts: 4,135	Re: Cruise control Indicator light I am also interested. A couple of guys on ls1tech are pretty knowledgeable also. __________________ Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205

11-11-2010, 02:28 PM	#3
Oilbrnr Registered User Join Date: Feb 2009 Location: Scottsdale, AZ Posts: 390	Re: Cruise control Indicator light I'd bet you'll need the BCM for that... __________________ -Don- '66 C10 w/factory A/C '77 Cheyenne K5 350/465/205 '80 Custom Deluxe K20 350/465/205 '04 Denali XL '05 DMax CCLB 4x Have a Hickey Sidewinder Winch and need the owners/install manual? Send me a PM with your email address and I'll forward you a .pdf

11-11-2010, 08:36 PM	#4
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	Re: Cruise control Indicator light The bcm does control all of those functions. I was hoping someone figured a way to pull voltage or ground from the tac module or something like that with some relays to make it work. There is some voltage from the pcm that works the clutch signal , It also works with the cruise. The tcc has voltage , It also works with the cruise to disengage. Maybe something there to work with. I was hoping someone had already figured it out.

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