TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.130
BE/Body Electrical Systems131 / 203
p.132
INSPECTION PROCEDURE — MK4 Supra Body Electrical Systems, page 131
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BE–131 BODY ELECTRICAL SYSTEM – THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM INSPECTION PROCEDURE HINT: This troubleshooting is based on the premise that engine cranking occurs. If the engine does not crank, proceed to engine troubleshooting on page EG–381 or 487 (Vol. 1). 1 Check voltage between terminal SRLY of theft deterrent and door lock ECU connector and body ground. START Disconnect SRLY P (1) Remove instrument panel panel. (See BO section.) (2) Disconnect the ECU connector. C Measure voltage between terminal SRLY of theft deterrent ECU connector and body ground when ignition switch is turned on. OK Voltage: 10 – 14 V BE3B41 NO7479 NG OK ) Check and replace theft deterrent ECU. Check and repair harness and connector between starter and theft deterrent and door lock ECU (See page IN–30).