I have a 2003 Sierra and ended up swapping doors to 2000 doors due to damage. I have tested the switches and have figured all wiring except controlling the right side (passenger side) from the driver side master switch. I have tested the switch tan wire #167 and light blue #166 and I do not get any flow power from either. So, either I have a bad switch or I'm doing something wrong.
Here's how I'm testing, running 12v:
power supply to the green and orange wires. All black wires are grounded. Voltmeter connected to the same ground. Positive voltmeter is connected to the wire that is supposed to be providing power based on the position of the switch. Both up and down wires on the driver side tested good, but not the passenger switch. Does the passenger side switch on the driver side provide ground and not power? That would make sense if there's a relay before the driver side motor and the relay would be the one to supply the power when activated, but I'm just guessing here. Any help would be greatly appreciated.
Here's how I'm testing, running 12v:
power supply to the green and orange wires. All black wires are grounded. Voltmeter connected to the same ground. Positive voltmeter is connected to the wire that is supposed to be providing power based on the position of the switch. Both up and down wires on the driver side tested good, but not the passenger switch. Does the passenger side switch on the driver side provide ground and not power? That would make sense if there's a relay before the driver side motor and the relay would be the one to supply the power when activated, but I'm just guessing here. Any help would be greatly appreciated.
Image (Click to enlarge)
Aug 3, 2022 at 10:27 PM
