Without Scan Tool

If scan tool is not available
1. Cycle the ignition key On-Off-On-Off-On within 5 seconds.
2. Count the number of times the check engine/malfunction indicator lamp on the instrument panel flashes on and off. The number of flashes represents the diagnostic trouble code. There is a slight pause between the flashes to separate the first and second digits of the code. Longer pauses between flashes separate individual diagnostic trouble codes.