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TEST SPECIFICATIONS AND TASK LISTS FOR THE NATIONAL AUTOMOTIVE STUDENT SKILLS STANDARDS ASSESSMENT - page 7 / 9

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C. Starting System

1.

Test instrument panel mounted volt meters and/or indicator lamps; determine needed action.

2.

Identify causes of a no charge, low charge, or overcharge problems; determine needed action.

3.

Inspect and replace alternator drive belts, pulleys, fans, tensioners, and mounting brackets; adjust drive belts and check alignment.

4.

Perform charging system voltage and amperage output tests; perform AC ripple test; determine needed action.

  • 1.

    Perform starter circuit cranking voltage and voltage drop tests; determine needed action.

  • 2.

    Inspect and test components (key switch, push button and/or magnetic switch) and wires in the starter

control circuit; replace as needed.

D

. Charging System Diagnosis and Repair

3.

Inspect and test, starter relays and solenoids/switches; replace as needed.

4.

Remove and replace starter; inspect flywheel ring gear or flex plate.

  • 5.

    Perform charging circuit voltage drop tests; determine needed action.

  • 6.

    Remove and replace alternator.

  • 7.

    Inspect, repair, or replace cables, wires, and connectors in the charging circuit.

    • E.

      Lighting Systems

  • 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.

Effective: January 2010

7

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