TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System72 / 116
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Inspection of cancel switch circuit. — MK3 Supra Body Electrical System, page 72
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BE-72 BODY ELECTRICAL SYSTEM — Cruise Control System F Inspection of cancel switch circuit. Turn ignition switch off. CONTROL SWITCH INSPECT GROUND CONNECTION Disconnect connector from control switch and check continuity between terminal *3 or **4 of wire harness side connector and body ground? No • Open circuit in wire harness between terminal *3 or **4 and body ground. • Body ground faulty. Yes INSPECT CANCEL SWITCH OPERATION Is cancel switch operation normal? (See page BE-81) No Replace control switch. Yes Connect connector to control switch. COMPUTER Disconnect connector from computer and inspect connector on wire harness side as follows. INSPECT CANCEL SWITCH CIRCUIT Is resistance value about 418Ω between terminal 17 and body ground with cancel switch pushed on? No Open or short circuit in wire harness between terminal 17 of computer and terminal *4 or **1 of control switch. Yes Replace computer. *: U.S.A. (w/ Airbag system) **: CANADA (w/o Airbag system)