TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System, page 48

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Body Electrical System — MK2 Supra Body Electrical System, page 48
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Page text (OCR transcript)
SECTION H

TROUBLE

Tachometer
No display at all

Only tachometer?
No
Refer to section A
Yes

Remove meter and connect sub-harness (SST)

1 With the ignition S/W at ON position,
check that voltage between terminals of
tachometer connector is as follows:
Terminals 1 — 6    Battery voltage
Terminals 2 — 6    4.0 — 6.0V
Terminals 4 — 6    0 — 1.5V

No
Replace speedometer

OK

Replace tachometer

1
Tachometer
[DIAGRAM showing tachometer and connector with terminals labeled: 1G, IG, GND, 1, 2, 3, 4, 5, 6, 21]