A70 · 1986.5–1992 · 7M-GE / 7M-GTE

MK3 Toyota Supra Service Manual

Factory repair manual (TSRM), electrical wiring diagrams (EWD) and community fixes for the A70 Supra

The third-generation Toyota Supra (A70 chassis, 1986.5–1992) used the 3.0L 7M-GE inline-six and the turbocharged 7M-GTE. This is the complete 1990 Toyota factory repair manual (TSRM) — engine mechanical, EFI, turbo, transmission, brakes, body and electrical — plus the 1987 electrical wiring diagram (EWD) and a catalog of common problems with confirmed fixes from SupraForums.

— Browse the MK3 Supra documentation

Repair Manual →

1990 Factory Service Manual

28 sections · 1,337 pages

Wiring Diagrams →

EWD022U (USA-1987)

40 sections · 162 pages

Community Fixes →

Verified repairs from SupraForums

Grouped problems with confirmed fixes

↓ Download for offline use

ZIP archive with every page image and an offline HTML viewer

349 MB · 1,505 images

Repair Manual Sections

Service Specifications SRS Airbag Air Conditioning System Automatic Transmission Standard Bolt Torque Specifications Body Electrical System Body Brake System SST & SSM Charging System Clutch Cooling System Electrical Wiring Diagrams Emission Control Systems Engine Mechanical Exhaust System Front Axle & Suspension EFI System Ignition System Introduction Lubrication System Maintenance Manual Transmission Propeller Shaft Rear Axle & Suspension Steering Starting System Turbocharger System

Wiring Diagram Sections

Introduction & How To Use Troubleshooting Glossary of Terms and Symbols Power Source Starting and Ignition Systems EFI System Charging System Light Auto Turn Off System Turn Signal and Hazard Warning Lights Headlights Fog Lights Interior Lights Back-Up Lights Stop Lights Taillights and Illumination Remote Control Mirrors Rear Window Defogger and Mirror Heater Front Wiper and Washer Door Locks Rear Wiper and Washer Power Windows Power Seat Cruise Control ECT System Anti-Lock Brake System (ABS)Headlight Cleaner Cigarette Lighter and Clock TEMS Unlock and Seat Belt Warning Super Monitor Horns Theft Deterrent System Auto Antenna Radio and Tape Player Combination Meter Automatic Air Conditioner Ground Points Relay Locations Electrical Wiring Routing Overall Wiring Diagram