Single Led System (2 Modes)

When Mode II is accessed (engine NOT running), codes stored in ECU memory will be flashed by the CHECK ENGINE light and the Red LED on the side of the ECU. A long flash (.6 second) will indicate the 10's column digit. Short flashes (.3 second) will indicate the 1's column digit. For example: 3 long flashes, followed by 5 flashes of the Red LED (or CHECK ENGINE light) would indicate a code 35.