1985 GMC S15 Data Link Question

1985 GMC S15
190,000 MILES • 4 CYL • 2WD • MANUAL
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IXTHUS
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My Data Link Connector only has 4 wires connected to it. White w/black stripe, Black w/white stripe, Orange, and Tan w/white stripe. I need to check my trouble codes but can't. Are the wires hard wired to the ECM or can you just easily plug in a new ALDL. Thanks.
Oct 1, 2010 at 9:33 PM
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RASMATAZ
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Jumper A to B in the DLC and read of the flashes


https://images.2carpros.com/forum/automotive_pictures/12900_aldl_1.jpg

Oct 2, 2010 at 5:42 AM
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