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Old 08-10-2010, 02:32 AM   #5
BLE 'BURBAN
In the Forgotten far North.
 
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Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
Re: 91 suburban cruise control elimination

The wiring harness/vacuum line run under the dash to 7 places.
1. Ground lead gang on the left sidewall behind the dash.
2. Power lead to the fuse block.
3.connector to the turnsignal stalk along the column under the dash.
4. one plug to your v.s.s. module Located on the backside of the dash under the stereo location.
The last 3 connections are to the cruise control module and both the primary & secondary brake light/vacuum switch shown as #'s 11,16 & 18 in the illustration below.
Please note that if you remove the brake light/vacuum switch, then you will need to replace your primary brake light switch with one designed for a vehicle without cruise control since your brake light wiring plugs into both switch's with cruise and only one with both connectors in it without cruise.


#11= cruise control module
#16= secondary brake light/vacuum disengage switch
#17= Vacuum disengage switch for older models of trucks (84-86)
#18= Primary brake light switch.
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1990 chevy suburban V2500 5.7L
My cluster Mods-Nov 2007
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