TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System67 / 116
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Inspection of set/coast switch circuit. — MK3 Supra Body Electrical System, page 67
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B Inspection of set/coast switch circuit. Turn ignition switch off. CONTROL SWITCH INSPECT GROUND CONNECTION Disconnect connector from control switch. Is there 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 SET/COAST SWITCH OPERATION Is set/coast 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 SET/COAST SWITCH CIRCUIT Is resistance value about 198 Ω between terminal 17 and body ground with set/coast 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)