TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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FA/Front Axle & Suspension30 / 42
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Troubleshooting No. 1: Initial check — MK3 Supra Front Axle & Suspension, page 30
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FA-30 FRONT AXLE AND SUSPENSION — TOYOTA Electronic Modulated Suspension Troubleshooting No. 1: Initial check Does TEMS indicator light S, M and F in combination meter light up for 2 seconds, when ignition switch turned on? No → Is there 12 V between TEMS computer terminals +B and GND with ignition switch turned on? Yes ↓ Yes ↓ No ↓ Faulty: • Fuse, Fusible link • Battery wire harness • Ignition switch • Computer earth Faulty indicator bulb, circuit or TEMS computer Place mode select switch at Normal position, does TEMS indicator light M and No → Faulty mode select switch, circuit F go out and S light? or TEMS computer Yes ↓ Does TEMS indicator light S go M light No → Faulty mode select switch, circuit when place mode select switch at Sport? or TEMS computer Yes ↓ Is there operation noise from each actuator No → With actuator disconnected, is there when mode select switch switched from instant voltage (above 8 V) to connector Sport → Normal → Sport? terminals (wire harness side) 1 and 2 when the mode select switch operated? Yes ↓ No ↓ Yes ↓ Faulty TEMS actuator (See page FA-37) ↓ Does actuator terminals resistance correct? (See page FA-37) No ↓ Yes ↓ Faulty TEMS actuator (See page FA-37) ↓ Faulty TEMS computer, circuit ↓ Continued on page FA-31