STANDARD COMPETENCIES:

 

 1. Interface with vehicle’s on-board computer; perform diagnostic procedures using recommended electronic diagnostic

    equipment and tools (including PC based software and/or data scan tools); determine needed action

 2. Identify causes of brighter than normal, intermittent, dim, or no headlight and daytime running light (DRL) operation.

 3. Test, aim, and replace headlights.

 4. Test headlight and dimmer circuit switches, relays, wires, terminals, connectors, sockets, and control components/modules;

    repair or replace as needed.

 5. Inspect and test switches, bulbs/LEDs, sockets, connectors, terminals, relays, wires, and control components/modules of

    parking, clearance, and taillight circuits; repair or replace as needed.

 6. Inspect and test instrument panel light circuit switches, relays, bulbs/LEDs, sockets, connectors, terminals, wires, and

    printed circuits/control modules; repair or replace as needed.

 7. Inspect and test interior cab light circuit switches, bulbs, sockets, connectors, terminals, wires, and control components/modules;

    repair or replace as needed.

 8. Inspect and test tractor-to-trailer multi-wire connector(s); repair or replace as needed.

 9. Inspect, test, and adjust stoplight circuit switches, bulbs/LEDs, sockets, connectors, terminals, wires and control components/modules;

    repair or replace as needed.

 10. Inspect and test turn signal and hazard circuit flasher(s), switches, relays, bulbs/LEDs, sockets, connectors, terminals, wires

     and control components/modules; repair or replace as needed.

 11. Inspect and test reverse lights and warning device circuit switches, bulbs/LEDs, sockets, horns, buzzers, connectors,

     terminals, wires and control components/modules; repair or replace as needed.

 12. Interface with vehicle’s on-board computer; perform diagnostic procedure using recommended electronic diagnostic equipment

     and tools (including PC based software and/or data scan tools); determine needed action.

 13. Identify causes of intermittent, high, low, or no gauge readings; determine needed action.

 14. Identify causes of data bus-driven gauge malfunctions; determine needed action.

 15. Inspect and test gauge circuit sensor/sending units, gauges, connectors, terminals, and wires; repair or replace as needed.

 15. Inspect and test warning devices (lights and audible) circuit sensor/sending units, bulbs/LEDs, sockets, connectors,

     wires, and control components/modules; repair or replace as needed.

 16. Inspect, test, replace, and calibrate (if applicable) electronic speedometer, odometer, and tachometer systems.

 17. Inspect and test transmission temperature gauge and sensor/sending unit; determine needed action.

 18. Inspect and test drive axle temperature gauge, wiring harnesses, and sending unit/sensor; determine needed action.

 TOPICAL OUTLINE:

 

 I. Chassis Electrical Circuits & Repair

     A. Exterior Lighting Systems

     B. Interior & instrumentation Lighting Systems

     C. Diagnosis & Repair of exterior lighting systems

     D. Diagnosis & Repair of Interior lighting Systems

 II. Diagnosis and Repair of Electronic Circuits

     A. Gauges and Warning Devices Diagnosis & Repair

     B. Using Handheld Electronic Diagnostic Equipment