Troubleshooting - Toyota Supra 1990 Manual

ST-2 STARTING SYSTEM - Troubleshooting
TROUBLESHOOTING
Problem
Possible cause
Remedy
Page
Engine will not crank
Battery charge low
Check battery specific gravity CH-2
Charge or replace battery
Battery cables loose, corroded or worn
Repair or replace cables
Starter relay faulty (ex_ Canada A/T) Replace starter relay
Clutch start switch faulty (MfTonly)
Adjust switch position or
CL-4
replace switch
Neutral start switch faulty
(AfT only) Adjust or repair 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
CH-2
Charge or replace battery
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
Pinion gear teeth broken or faulty starter
Repair starter
ST-3
will not crank
Flywheel teeth broken
Replace flywheel