Entering Diagnostic Mode Without Super Monitor Display

Ensure battery voltage is above 11 volts, throttle valve is fully closed, transmission in "P" or "N" position, all accessory off, and engine is at normal operating temperature.
Turn ignition switch to ON position, but DO NOT start engine. Using a jumper wire, short terminals "T" - "E1" of engine check connector.
Read code(s) as indicated by number of flashes of CHECK ENGINE warning light. See TROUBLE CODE IDENTIFICATION table.
The CHECK ENGINE warning light will blink a number of times equal to the malfunction code indication with a 2.5 second delay between each indication. The diagnostic code series will be repeated as long as engine check connector terminals "T" - "E1" are shorted.

Fig 1: Super Monitor Display