How do you get trouble code on a 91 Mitsubishi mighty max?

To retrieve the trouble codes from a 1991 Mitsubishi Mighty Max, you need to locate the diagnostic connector under the dashboard, typically near the driver's side. Use a jumper wire to connect terminals "E1" and "TE1" on the connector. Once connected, turn the ignition key to the "On" position (without starting the engine), and the check engine light will blink in a sequence that corresponds to the trouble codes. Count the blinks to identify any stored codes.