TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
p.114
BE/Body Electrical System115 / 116
p.116
CLOCK
Troubleshooting — MK3 Supra Body Electrical System, page 115
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BODY ELECTRICAL SYSTEM — Clock BE-115 CLOCK Troubleshooting CLOCK WILL NOT OPERATE Check to see if fuse is blown. → Blown fuse → Locate trouble and repair or replace fuse as necessary. ↓ OK Check to see if clock adjusting button is sticking in position and has failed to return. → Adjusting button not returned → Repair if necessary or replace clock. ↓ OK Check to see if battery voltage is over 11V with no load. → Below 11V → Recharge or replace battery. ↓ OK Check to see if connector on clock side is loose or rusted. → Loose or rusted → Repair ↓ OK Check to see if there is voltage at terminal B or connector or clock side. → No voltage → Locate cause and repair. ↓ OK Check to see if clock ground wire is loose or rusted. → Loose or rusted → Repair ↓ OK Replace clock. CLOCK LOSES OR GAINS TIME Check amount of time the clock loses or gains per day or a week against the allowable error table. ↓ Exceeds allowable error Check to see if there is 11 — 15V on terminal B of connector on clock side. → Below 11V → Locate cause and repair, or recharge battery. ↓ OK Adjust or replace clock.