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Re: Looking for 1994 Cruise Control Electrical Schematic Posted by TonyJ [Email] ![]() ![]() ![]() In Reply to: Looking for 1994 Cruise Control Electrical Schematic, Bill Homer ![]() |
Bill, assuming you don't have TCS, From the Saab shop manual, the wire between the Cruise control and the Trionic ECU is item#608A, red, 0.5sq. mm. It is on pin 1 of the cruise control unit, passes through pin 24 of connector H24-1 and ends up at pin 36 of the Trionic ECU. When this wire is grounded, normally when cruise control is engaged, the Trionic is held to base boost. If the cruise control unit is your problem, unplugging it should restore your boost. To eliminate the possibility of a short to ground, you should see about 12 V at pin one of the the unplugged cruise control unit connector with a DVM. This is one of the many checks that passed on my son's 95 Aero, which seems to have low boost due to a bad ECU. Good luck.
TonyJ 93 CSEt 206K, 94 Aero 81K
posted by 24.91.82...
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