Single Led System (2 Modes): Introduction

Self-diagnostic system will operate in 2 modes, manually selected using a screwdriver through access port on ECU. With ignition switch in ON position and engine NOT running, use screwdriver to turn switch fully clockwise. Wait at least 2 seconds. Turn screwdriver fully counter-clockwise. Inspection light will begin to flash.

NOTE: Modes cannot be switched while engine is running. When ignition switch is in OFF position, ECU switches to Mode I.