Tricking the computer

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amcmac

Member - Posts: 23

Joined: April 22, 2003

Location: United States

Posted: March 23, 2006 at 5:24 AM / IP Logged

I installed a 561T and a GM-SL module on a '04 Silverado. I am under the impression that the GM-SL will kick on the heated seats, heated mirrors and rear defroster if the outside temp is below 32. We have gotten down into the upper 20s here recently and I haven't seen anything kick on. First do the indication lights for the seats or rear defroster come on when this is done? Second, is there a way to trick the computer into thinking the temp is lower than 32 to test it out? I know the sensor for the rear view mirror is in front of the radiator, but I wasn't sure what sensor the GM-SL used. I thought it could be the engine coolant temp sensor as well. Thanks for the help.

Aron

doibuy

Copper - Posts: 177

Joined: March 15, 2006

Posted: March 23, 2006 at 9:37 PM / IP Logged

GM-SL? Who makes this, and where do you get it? I've been trying to figure out a way to kick on my seat heaters with the auto start for a while now, with no luck. I'd like to check this thing out, especially if you can get it to work, sorry though, not any help.

bqblaz

Member - Posts: 7

Joined: January 13, 2006

Location: United States

Posted: March 23, 2006 at 10:49 PM / IP Logged

I have a Viper 791 and a GM-SL on my 04 avalanche and when r/s the heated seats turn on low when the engine temp is below 32 and the indicator light on the doors do come on. http://bypasskits.fortinautoradio.com/

amcmac

Member - Posts: 23

Joined: April 22, 2003

Location: United States

Posted: March 24, 2006 at 6:50 AM / IP Logged

Is there anything special I have to do to the GM-SL to make the heated functions work?

brcidd

Copper - Posts: 274

Joined: January 07, 2005

Location: Ohio, United States

Posted: March 24, 2006 at 6:56 AM / IP Logged

Just wait until engine temp is below freezing- the old GM-U7 also did this- have had one on an '04 Silverado for over a year with no complaints.............

Brcidd - Engineer That Does Remote Starter Installs on the side.

amcmac

Member - Posts: 23

Joined: April 22, 2003

Location: United States

Posted: March 24, 2006 at 8:26 AM / IP Logged

I have tried it with the temp in the mid 20s and nothing. I didn't change any of the special programming that allows you to enable or disable the different heated functions. I might check to see that they are all enabled. Any other ideas?

gus1

Gold - Posts: 1,013

Joined: October 15, 2003

Location: Canada

Posted: March 24, 2006 at 9:04 PM / IP Logged

Mid 20's isn't freezing enough.... think closer to 10ish (I know the seats and things turn on on these trucks below -5C up here, which is around 10F.)

Gus

Wherever I go, that is where I end up......

amcmac

Member - Posts: 23

Joined: April 22, 2003

Location: United States

Posted: March 25, 2006 at 7:49 AM / IP Logged

Does anyone know if the brown accessory 2 wire needs to be hooked up to make the heated seats work?

Chris Luongo

Platinum - Posts: 3,746

This member consistently provides reliable information

Joined: May 21, 2002

Location: Massachusetts, United States

Posted: March 25, 2006 at 10:38 AM / IP Logged

Does the module work on engine temperature from the car's databus....... or the temperature of the module itself?

Why not place the module in a household freezer, then quickly bring it to the car, plug it in, program it, and remote start?

You might tape a towel around the module before putting it in the freezer, so that your hands won't warm it up while re-installing it.

amcmac

Member - Posts: 23

Joined: April 22, 2003

Location: United States

Posted: March 25, 2006 at 10:51 AM / IP Logged

My understanding is it uses the engine coolant temperature. I could be wrong.

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