Question about 2005 Pontiac Grand Prix
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Posted on Jan 02, 2017
a quick test is to disconnect the sensor connector hook up and ohm meter to the sensor connector on the hub side not the engine side and spin the hub if the resistance rises and falls you're most likely ok if the resistance reads 0 or infinite you have found the bad sensor..this won't always be the case but it's a good start in the right direction
Posted on Jul 22, 2009
Check for power and ground at the break, transmission, interlock switch located at the gear shift - if you have power and ground interlock is faulty - replace interlock switch. If no power and ground - check circuit continuity.
Posted on Aug 02, 2009
Pin 20 on the blue pcm connector is the power wire to the pcm it is an orange wire. (hot at all times). The power to the data link connection is the cig fuse in the i/p fuse box.
What is the exact problem you are having?
Posted on Aug 04, 2009
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