No you can't do it with resistors. The body control module puts out a sign wave I think that has to be received by the PCM. There is a resistor that the body control module looks for in the column switch or on some the key. On ebay you can buy a VATS box that puts out the correct wave for the BCM. eBay Motors: GM VATS or PASSkey II Bypass Module For LS1 and LT1 (item 320199018493 end time Dec-28-07 15:42:05 PST)
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning