Without Scan Tool

To display the stored trouble codes through the "Check Engine" lamp, proceed as follows:

1. With engine off, turn ignition switch to ON position.
2. Depress accelerator pedal completely for 3-5 seconds.
3. Wait for "Check Engine" lamp to flash, then release accelerator pedal. ECU will begin to flash trouble codes.
4. Fully depress accelerator pedal to display next trouble code. When trouble code 1000 is displayed, no additional codes are stored are memory.