DPE 3010 - Basic Electricity & Electronic

Safety

• Identify and practice general shop safety rules and procedures.
• Utilizing safe procedures for handling of tools and equipment.
• Identifying and using proper placement of floor jacks and jack stands.
• Identifying and using proper procedures for safe lift operation.
• Utilizing proper ventilation procedures for working within the lab/shop area.
• Identifying marked safety areas.
• Identifying the location and the types of fire extinguishers and other fire safety equipment.
• Demonstrating knowledge of the procedures for using fire extinguishers and other fire safety equipment.
• Identifying the location and use of eye wash stations.
• Identifying the location of the posted evacuation routes.
• Complying with the required use of safety glasses, ear protection, gloves, and shoes during lab/shop activities.
• Identifying and wearing appropriate clothing for lab/shop activities.
• Securing hair and removing jewelry for lab/shop activities.
• Demonstrating awareness of the safety aspects of supplemental restraint systems (SRS), electronic brake control systems, and hybrid vehicle high voltage circuits.
• Demonstrating awareness of the safety aspects of high voltage circuits (such as high intensity discharge (HID) lamps, ignition systems, injection systems, etc.).
• Locating and demonstrating knowledge of material safety data sheets (MSDS).

Tools and Equipment

• Identify tools and their usage in automotive applications.
• Identifying standard and metric designation.
• Demonstrating safe handling and use of appropriate tools.
• Demonstrating proper cleaning, storage, and maintenance of tools and equipment.
• Demonstrating proper use of precision measuring tools Examples: micrometer, dial-indicator, dial-caliper

Electrical Systems

• Read and interpret electrical/electronic circuits using wiring diagrams.
• Check continuity in electrical/electronic circuits using appropriate test equipment.
• Check applied voltages, circuit voltages, and voltage drops in electrical/electronic circuits using appropriate test equipment.
• Check current flow in electrical/electronic circuits and components using appropriate test equipment.
• Check resistance in electrical/electronic circuits and components using appropriate test equipment.
• Locate shorts, grounds, and opens in electrical/electronic circuits.
• Identify parasitic (key-off) battery drain problems; perform tests; determine needed action.
• Inspect and test fusible links, circuit breakers, relays, solenoids, and fuses; replace as needed.
• Inspect and test spike suppression devices; replace as needed.
• Check frequency and pulse width signal in electrical/electronic circuits using appropriate test equipment.

Battery

• Identify battery type; perform appropriate battery load test; determine needed action.
• Determine battery state of charge using an open circuit voltage test.
• Inspect, clean, and service battery; replace as needed.
• Inspect and clean battery boxes, mounts, and hold downs; repair or replace as needed.
• Charge battery using appropriate method for battery type.
• Inspect, test, and clean battery cables and connectors; repair or replace as needed.
• Jump start a vehicle using jumper cables and a booster battery or appropriate auxiliary power supply using proper safety procedures.
• Perform battery capacitance test; determine needed action.
• Identify and test low voltage disconnect (LVD) systems; determine needed repair.

Starting System

• Perform starter circuit cranking voltage and voltage drop tests; determine needed action.
• Inspect and test components (key switch, push button and/or magnetic switch) and wires and harnesses in the starter control circuit; replace as needed.
• Inspect and test, starter relays and solenoids/switches; replace as needed.
• Remove and replace starter; inspect flywheel ring gear or flex plate.
• Charging System Diagnosis and Repair
• Test instrument panel mounted volt meters and/or indicator lamps; determine needed action.
• Identify causes of a no charge, low charge, or overcharge problems; determine needed action.
• Inspect and replace alternator drive belts, pulleys, fans, tensioners, and mounting brackets; adjust drive belts and check alignment.
• Perform charging system voltage and amperage output tests; perform AC ripple test; determine needed action.
• Perform charging circuit voltage drop tests; determine needed action.
• Remove and replace alternator.
• Inspect, repair, or replace cables, wires, and connectors in the charging circuit.

Lighting Systems

• Interface with vehicle’s on-board computer; perform diagnostic procedures using recommended electronic service tool(s) (including PC based software and/or data scan tools); determine needed action.
• Identify causes of brighter than normal, intermittent, dim, or no headlight and daytime running light (DRL) operation.
• Test, aim, and replace headlights.
• Test headlight and dimmer circuit switches, relays, wires, terminals, connectors, sockets, and control components/modules; repair or replace as needed.
• 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.
• 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.
• Inspect and test interior cab light circuit switches, bulbs/LEDs, sockets, low voltage disconnect (LVD), connectors, terminals, wires, and control components/modules; repair or replace as needed.
• Inspect and test tractor-to-trailer multi-wire connector(s); repair or replace as needed.
• Inspect, test, and adjust stoplight circuit switches, bulbs/LEDs, sockets, connectors, terminals, wires and control components/modules; repair or replace as needed.
• 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.
• 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.

Gauges and Warning Devices

• Interface with vehicle’s on-board computer; perform diagnostic procedure, verify instrument cluster operations using recommended electronic service tool(s) (including PC based software and/or data scan tools); determine needed action.
• Identify causes of intermittent, high, low, or no gauge readings; determine needed action.
• Identify causes of data bus-driven gauge malfunctions; determine needed action.
• Inspect and test gauge circuit sensor/sending units, gauges, connectors, terminals, and wires; repair or replace as needed.
• 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
• Inspect, test, replace, and calibrate (if applicable) electronic speedometer, odometer, and tachometer systems.