TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System12 / 121
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LIGHTING
Troubleshooting — MK2 Supra Body Electrical System, page 12
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LIGHTING Troubleshooting Problem | Possible cause | Remedy | Page Only one light does not light (all exterior) | Light bulb burned out | Replace bulb | | Socket, wire or ground faulty | Repair as necessary | No headlights light | Fusible link blown | Replace fusible link | | Headlight control relay faulty | Check relay | BE-14 | Light control switch faulty | Check switch | BE-13 | Wiring or ground faulty | Repair as necessary | High beam headlights or headlight flasher do not operate | Light control switch faulty | Check switch | BE-13 | Wiring faulty | Repair as necessary | Tail, parking and license light do not light | TAIL fuse blown | Replace fuse and check for short | BE-4 | Fusible link blown | Replace fusible link | | Taillight control relay faulty | Check relay | BE-14 | Light control switch faulty | Check switch | BE-13 | Wiring or ground faulty | Repair as necessary | Stop lights do not light | STOP fuse blown | Replace fuse and check for short | BE-4 | Stop light switch faulty | Adjust or replace switch | | Wiring or ground faulty | Repair as necessary | Stop lights stay on | Stop light switch faulty | Adjust or replace switch | Instrument lights do not light (taillights light) | Light control rheostat faulty | Check rheostat | BE-17 | Wiring or ground faulty | Repair as necessary | B Turn signal does not flash on one side | Turn signal switch faulty | Check switch | BE-18 | Wiring or ground faulty | Repair as necessary | Turn signals do not operate | TURN fuse blown | Replace fuse and check for short | BE-4 | Turn signal flasher faulty | Check flasher | BE-19 | Turn signal/hazard switch faulty | Check switch | BE-18 | Wiring or ground faulty | Repair as necessary | Hazard warning lights do not operate | HAZ-HORN fuse blown | Replace fuse and check for short | BE-4 | Turn signal flasher faulty | Check flasher | BE-19 | Turn signal/hazard switch faulty | Check switch | BE-18 | Wiring or ground faulty | Repair as necessary |