Model 6500 not working I opened the unit, put my volt meter following the red wired to a connection wrapped in black tape and a resister or some kind of connection I lost power.

SOURCE: Bought 2007 Saturn Aura electric seats wont work

Those electric seats have relays(for movement & heater element) and a sophisticated DPDT switch. Hooking up a 12volt supply won't work,,,not to mention 20amp 12volt power supply

SOURCE: wiring an amp meter diagram

put the meter in series remove wire gointo back of alternator put one lead on wire and one on alternator that should give you your reading

SOURCE: 93 Buick LeSabre. Battery not charging

use a volt meter while the car is running to check the main wire or large red wire coming off the back of the alternator it should read a steady 14 volts, the volt meter must be set at dc 10 amp settings, ground the black wire to ground or a metal surface some where on the car and touch the red probe wire on the volt meter to the main terminal of the alternator as i said it should read a constant 14 volts if it doesn't the alternator is bad.

SOURCE: 2004 toyota corolla tach wire

you can also solder the wire to the tach wire, this way it won't come off and cause a malfunction

SOURCE: need wiring diagram for 1996 GMC Sonoma, I lost

On the 96 GMC sonoma my fuses are located on a small panel on the drivers side of the dash, it's hidden by the door when it's closed, you'll see a round knob. Under my hood is ONLY the master cylinder and cruise control unit. NO fuses are under my hood either. The relays are behind a panel in the glove compartment.