Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

1984 Toyota Van LE, AutomaticFACTORY OEM SERVICE PROCEDURE

Start Injector Time Switch

Disconnect the connector.
Using an ohmmeter, measure the resistance between each terminal.

TERMINAL RESISTANCE MEASUREMENT

Terminals	Resistance (Ohms)	Coolant Temp.
STA - STJ	30-50	Below 35°C (95°F)
STA - STJ	70-90	Above 35°C (95°F)
STA - Ground	30-90	n/a

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.