Instrument Panel Lamps - All Lamps Inoperative

Parking Lamps ON.

Test park fuse. Replace if blown.

Test Instrument lamp fuse. Replace if blown.

Test battery side of instrument lamps fuse with Rheostat turn CCW to CW (LO - HI). If results are not zero for LO and battery voltage for HI, replace headlight switch.

Test ground side of instrument lamps fuse with parking lamp ON. If resistance is almost zero (except bulb filament), repair open to ground if zero ohms ORN W/TR wire is shorted to ground, repair short.