TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System79 / 121
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BODY ELECTRICAL SYSTEM — Cruise Control System — MK2 Supra Body Electrical System, page 79
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E INSPECTION OF PARKING BRAKE SWITCH Turn ignition switch on. COMPUTER INSPECT PARKING BRAKE SWITCH CIRCUIT Disconnect connector from computer. Is there battery voltage between terminal 12 of wire harness side connector and body ground ? No → • Open circuit in wire harness between terminal 12 of computer and terminal 1 parking brake switch. • Inspect parking brake switch. Yes ↓ Replace computer. F INSPECTION OF CLUTCH SWITCH CIRCUIT Turn ignition switch on. CLUTCH S/W INSPECT GROUND CONNECTION Is there continuity between terminal 3 and body ground ? No → Open circuit in wire harness between terminal 3 and body ground. Yes ↓ COMPUTER INSPECT CLUTCH SWITCH CIRCUIT Disconnect connector from computer. Is there continuity between terminal 11 of wire harness side connector and body ground with clutch pedal depressed ? No → • Open circuit in wire harness between terminal 11 of computer and terminal 2 of clutch switch. • Inspect clutch switch. Yes ↓ Replace computer.