TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System96 / 116
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BODY ELECTRICAL SYSTEM — Theft Deterrent System — MK3 Supra Body Electrical System, page 96
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BE-96 BODY ELECTRICAL SYSTEM — Theft Deterrent System J INSPECTION OF THEFT DETERRENT HORN AND LIGHT RETRACTOR CONTROL RELAY CIRCUIT. Turn ignition switch off. COMPUTER Disconnect computer connector and check that stop the theft deterrent horn blows and/or headlight and taillight flash. No → Short circuit in light retractor control relay or theft deterrent horn circuit. ↓ Yes Replace computer. K INSPECTION OF LIGHT RETRACTOR CONTROL RELAY CIRCUIT. Turn ignition switch off. COMPUTER Disconnect computer connector and inspect connector on wire harness side as follows. INSPECT LIGHT RETRACTOR CONTROL RELAY CIRCUIT Remove the HAZ-HORN fuse. Ground the terminal B and check that flash the headlights and taillights. No → • Open circuit in light retractor control relay circuit. • Check the light retractor control relay. ↓ Yes Replace computer.