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Re: Wiring diagrams for 96/OBD2
Quote:
http://www.evoscan.com/technical-veh...rea-networking I have uncovered one difference in the wiring. I had to look at the wiring of a 1997 legacy tcu to find it. The tcu pin that used to run to the power mode light for obd1 models runs to the atf temp light on obd2 models and the pin that used to run to the atf temp light now runs to pin 80 on the obd2 ecu. The tcu sends some sort of diagnostic signal on that line to the ecu but I have no clue what. Could it just be the blinks that used to be sent to the atf temp light on obd1 models? Maybe there is a way to drive that pin on the ecu to make it happy. As far as I can tell, those are the only lines that may prevent an obd1 tcu from plugging into an obd2 car. Obd2 tcus also monitor the supply voltage on the tps but the obd1 tcu does not and that pin on the obd1 tcus is a NC so it shouldn't matter.
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Tony 1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads 2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil 2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil 1992 Red Ferrari 348 ts, 82,XXX, Redline everything |
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