TSRM/MK3 Supra/Repair Manual
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p.074

BE/Body Electrical System — Inspection of clutch switch circuit., page 75

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p.076
Inspection of clutch switch circuit. — MK3 Supra Body Electrical System, page 75
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Page text (OCR transcript)
I	Inspection of clutch switch circuit.

Turn ignition switch off.

CLUTCH SWITCH

INSPECT GROUND CONNECTION
Disconnect connector from clutch switch.
Is there continuity between terminal 2 of wire
harness side connector and body ground?

No
• Open circuit in wire harness between
  terminal 2 and body ground.
• Body ground faulty.

Yes

INSPECT CLUTCH SWITCH OPERATION
Is clutch switch operation normal?
(See page BE-82)

No

Replace clutch switch.

Yes

Connect connector to clutch switch.

COMPUTER

Disconnect connector from computer and
inspect connector on wire harness side as
follows:

INSPECT CLUTCH SWITCH CIRCUIT
Is there continuity between terminal 11 and
body ground with clutch pedal depressed?

No

Open circuit in wire harness between
terminal 11 of computer and terminal 1
of clutch switch.

Yes

Is there continuity between terminal 11 and
body ground with clutch pedal released?

Yes

Short circuit in wire harness between
terminal 11 of computer and terminal 1
of clutch switch.

No

Replace computer.