GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hello sorry for the delay. I am checking the diagrams now.
So looking over the diagram I can not see the 4 wire connector you are talking about , can you tell me what connector you are looking at ?
Ok thanks ! Does your seat have "memory "
Ok perfect man! Thanks ! Back on the case :)
Everything I'm seeing is a 8 pin connector. Old diagrams are horrible. I'm looking though. Can you upload some pics of what you are looking at and also the build date on the drivers door jamb
Ok and the build date on the drivers door ? And also confirm this is drivers seat ?
I can't find anything that matches up. I'll have to opt out. Sorry for the delay.
new expert here did you still need help ?
there is a black and an orange and an orange/black
what color is the 4th wire ?
ok with this seat just being 6 way power and NO memory or heated seats in it the orange/black wire is for heated seats which they wired these with the wiring for that potion so they did not have to make different harnesses
with 6 way power it it just the orange for 12 volts and the black a confirmed good ground
if those check out then make sure at the switch for the seat the orange is 12 and the black is a good ground if it shows good that the switch then when pushing the set forward and back button with a meter back probing terminals g and h
one meter lead to one terminal and other meter lead to other terminal it should show +12 volts pushing one way and -12 the other way
it works on reverse polarity switching the power and ground down those 2 wires to spin the motor in both directions so it will go back and forth
if that tests out good then the seat motor assembly would need to be changed
if it does NOT test out good then the odds are the switch is bad
run a temp ground to the black wire that shows nothing and see if it will work
from the sounds of this you have the correct power it sounds like that black is not a ground when it should be
Looks like previous expert has opted out. I will work with you to solve this. Connect your meter to the Orange and Black wires, take a voltage reading. Now operate any of the seat switches and take another reading. Does the voltage drop? If so, what is the reading you get?