TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System92 / 121
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BODY ELECTRICAL SYSTEM — Theft Deterrent System — MK2 Supra Body Electrical System, page 92
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CONTINUED FROM PREVIOUS PAGE INSPECT LH DOOR LOCK SOLENOID CIRCUIT Disconnect connector from computer. Is there continuity between terminal 1 of wire harness side connector and body ground with LH door unlocked? No → Open circuit in wire harness between terminal 1 of computer and terminal 2 of door lock solenoid. Yes ↓ INSPECT RH DOOR LOCK SOLENOID CIRCUIT Disconnect connector from computer. Is there continuity between terminal 2 of wire harness side connector and body ground with RH door unlocked? No → Open circuit in wire harness between terminal 2 of computer and terminal 2 of door lock solenoid. Yes ↓ INSPECT LH DOOR LOCK SWITCH CIRCUIT Close LH Door. Is there continuity between terminal 6 and body ground with LH door closed? Yes → Short circuit in wire harness between terminal 6 of computer and terminal 2 of LH door lock switch. No ↓ INSPECT RH DOOR LOCK SWITCH CIRCUIT Close RH door. Is there continuity between terminal 6 and body ground with RH door closed? Yes → Short circuit in wire harness between terminal 6 of computer and terminal 2 of RH door lock switch. No ↓ INSPECT HORN, TAILLIGHT AND HEAD-LIGHT CIRCUIT Is there battery voltage between terminal 12 and body ground. No → Open circuit in wire harness between terminal 12 of computer and horn or taillight control relay or headlight control relay. Yes ↓ Replace computer.