TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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ST/Starting System2 / 10
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TROUBLESHOOTING — MK2 Supra Starting System, page 2
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TROUBLESHOOTING Problem | Possible cause | Remedy | Page Engine will not crank | Battery charge low | Check battery specific gravity Charge or replace battery | CH-3 Battery cables loose, corroded or worn | Repair or replace cables Neutral start switch faulty (A/T only) | Replace switch Fusible link blown | Replace fusible link Starter faulty | Repair starter | ST-3 Ignition switch faulty | Replace ignition switch Engine cranks slowly | Battery charge low | Check battery specific gravity Charge or replace battery | CH-3 Battery cables loose, corroded or worn | Repair or replace cables Starter faulty | Repair starter | ST-3 Starter keeps running | Starter faulty | Repair starter | ST-3 Ignition switch faulty | Replace ignition switch Short in wiring | Repair wiring Starter spins — engine will not crank | Pinion gear teeth broken or faulty starter | Repair starter | ST-3 Flywheel teeth broken | Replace flywheel STARTING SYSTEM CIRCUIT Brush Ignition Switch Terminal C Hold-in Coil Pull-in Coil Fusible Link Terminal 50 Terminal 30 To Start Injection Time Switch, Cold Start Injector and ECU Terminal STA Battery Neutral Start Switch (for A/T) ST0261