TSRM/MK3 Supra/Repair Manual
Repair ManualWiring DiagramsCommunity Fixes
p.111

FI/EFI System — Cold Start Injector Time Switch, page 112

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p.113
Cold Start Injector Time Switch — MK3 Supra EFI System, page 112
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Page text (OCR transcript)
FI-112			EFI SYSTEM — Electronic Control System

Cold Start Injector Time Switch

To Ignition Switch
(ST1)
								To ECU (STA)

STA		STJ			STJ		STA

				To ECU (STJ)

				Cold Start Injector
				Time Switch

F03124

Ohmmeter

STA		STJ

F03814T03A1

INSPECTION OF COLD START INJECTOR TIME SWITCH

INSPECT RESISTANCE OF COLD START INJECTOR TIME SWITCH

Using an ohmmeter, measure the resistance between each terminal.

Resistance:
STA — STJ	25 — 45 Ω below 15°C (59°F)
		65 — 85 Ω above 30°C (86°F)
STA — Ground 25 — 85 Ω

If the resistance is not as specified, replace the switch.