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 malfunction indicator lamp (check engine lamp) on the instrument panel flashes on and off. The number of flashes represents the trouble code. There is a slight pause between the flashes representing the first and second digits of the code. Longer pauses (approx. 4 seconds) separate individual trouble codes.
3. Repair the malfunction by referring to Computers and Control Systems.