I knew this only because of having wiring diagrams. My roommate's mom's Envoy CEL was on, and when my tool wouldn't power I knew immediately to borrow the 10A out of my truck and swap it in, and got the codes pulled. The more you know!The_Roadie said:For the benefit of other searchers in the future, that fuse also (undocumented) feeds the OBDII diagnostic (code) port. If you ever see a failure of scan tools (or an emissions test cable) to connect to the vehicle, that fuse is almost always it. GM manual writers FAIL.
That's what I was saying in another post.The_Roadie said:For the benefit of other searchers in the future, that fuse also (undocumented) feeds the OBDII diagnostic (code) port. If you ever see a failure of scan tools (or an emissions test cable) to connect to the vehicle, that fuse is almost always it. GM manual writers FAIL.
The_Roadie said:It's one of those trivia tests I ask people at meets, to separate the true enthusiasts from the lurkers who don't remember squat.
1) What is the ONLY part number for I6 plugs?
41-103
2) How many bottles of what fluid do you have to buy at the dealer for your transfer case?
Trac 2?, lol mine is 2wd
3) What's the most common single point of failure for low beams and how can you quickly confirm it and limp home using a spare that's ALWAYS in the vehicle?
DRL relay
4) What fuse takes away the diagnostic port when it fails?
tilt!!
5) If you give a jump not using the battery terminals, and later on your interior lights and HVAC systems is dead, what did you blow?
the big fuse, carry one with me just incase
