Weird electrical issues 1991 Cutlass Supr

Oldsmobile Cutlass Supreme 1988-1991 Alarm and Keyless Entry Wiring Colors and Notes Constant +12 Volts: RED, RED / BLACK AND RED / WHITE - IGNITION SWITCH HARNESS Starter Kill: YELLOW IGNITION SWITCH HARNESS     Ignition +12 Volts: PINK IGNITION SWITCH HARNESS     Dome Lights/Superv: WHITE (-) DRIVER KICK PANEL OR COURTESY LIGHT     OEM Horn: BLACK (-) STEERING COLUMN HARNESS OR AT RELAY     Power Lock: LIGHT BLUE DRIVER'S KICK PANEL *     Power Unlock: BLACK DRIVER'S KICK PANEL * * See Note Positive Pulse Door Lock Diagram.     Trunk Release: BLACK (+) AT RELEASE SWITCH     Alarm DOME LIGHT Input Wire: WHITE (-) DRIVER KICK PANEL OR COURTESY LIGHT Remote Starter Wiring Colors and Notes Start: YELLOW IGNITION SWITCH HARNESS Ignition #1: PINK IGNITION SWITCH HARNESS     Ignition #2: DARK BLUE/WHITE IGNITION SWITCH HARNESS Accessory: ORANGE IGNITION SWITCH HARNESS     Brake Light: WHITE OR LIGHT BLUE(+) SWITCH ON BRAKE PEDAL SUPPORT BRACKET     Tach Signal: WHITE AT ELECTRONIC IGNITION MODULE     Parking Lights: BROWN (+) AT HEADLIGHT SWITCH     Headlights: YELLOW (+) HEADLIGHT SWITCH OR BEAM SELECT SW.     OEM Alarm Disarm: N/A Radio Specifications Type : J-BODY DIN Depth : 6 11/16" Location : DASH Kit : YES Antenna Information Type : STAND/POWER Location : RHT FRNT FEND Adapter : CRM8A Radio Notes *     Memory : ORG Ignition Pwr : YEL Ground : BLK Illumination : GRY Dimmer : BRN Power Ant. : PNK Harada Part : FM-70A Front Speakers * Size : 3 1/2" Location : DASH Kit : FACTORY GRILL RF(+) : LT.GRN RF(-) : DK.GRN LF(+) : TAN LF(-) : GRY     Rear Speakers * Size : 6 X 9" Location : REAR DECK Kit : FACTORY GRILL RR(+) : DK.BLU RR(-) : LT.BLU LR(+) : BRN LR(-) : YEL

Thanks a lot!

1. Sure, the switches are probably good, but don't rule it out just yet. First, find those light blue & black wires in the driver's kick panel, and test them. Does the black unlock wire test as it should? If it doesn't, it's a bad switch, or a break in the wire somewhere. If it DOES test as it should, then the next step is to make a few tests at the factory relay pack. The factory lock relays are somewhere around the passenger underdash area....operate the lock function and listen; that'll help you find them. Once you get at the factory relays, the thick orange should be positive, the thick black should be ground, the thin blue and black should be the lock wires off the switch, and the gray and tan are the wires that go to the lock motors. Test all of those wires for proper operation. 2. If you've already replaced the switch, and both mirrors exhibit the same problem, I'd wager it's a broken wire. Examine the wires where they go into the door through the boot; that's a common failure point. As for the turn signal flasher, just put on the signals and listen for it. It's likely to be around the fusebox area, which is easily accessed by pulling out the glove box.