Job Card 2: Test a Charging System Warning Indicator INSTRUCTIONS. Job Details: Upon completion of this task, you should be able to demonstrate how to test a charging system warning indicator in vehicle 1 (i.e. it is ON when the vehicle is running). Tool and Materials: A Vehicle A high-impedance Digital Multi-Meter (DMM) Scan tool Wiring diagram for vehicle Workshop manuals (WSM) for vehicles Hand Tool Vehicle Protection Personal Protective Equipment: Safety goggles or glasses with side shields Steel-toed shoes Tight fitted clothing Procedure: 1. Obtain tools and equipment from your trainer. 2. Ask your trainer to direct you to a work area. 3. Identify the job requirements from the workplace instructions (Job Card) 4. Source the manufacturer specifications, workplace instructions, safety and environmental requirements for testing the charging system warning indicator for the specific vehicle model