TSRM/MK3 Supra/Repair Manual
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FA/Front Axle & Suspension — Troubleshooting No. 1: Initial check, page 30

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Troubleshooting No. 1: Initial check — MK3 Supra Front Axle & Suspension, page 30
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Page text (OCR transcript)
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