Guided Component Tests Training and Classes
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11.1.3 How To Guide
The How To option provides multiple topics and references ranging from
instructional and basic theory to troubleshooting and testing instructions. Menu
options may include:
• 10-minute Electronic Classes—provides basic electrical theory and testing
information. Topics may include:
• Ohm’s Law
• Variable Resistors
• Amperage
• Diode Continuity
• Electrical Circuits
• Guided Voltage Drop Test
• Other Electrical Measurements
•Resistance
• Scientific Notation
• Voltage
• 15-minute Ignition Class—provides basic introductory ignition system
information. Topics may include:
• Introduction
• Coil on Plug (COP)
• Conventional
• Waste Spark
• Illustrated Terms & Definitions—provides common term definitions,
illustrations and tips associated with automotive component testing.
• No-Start Basics—provides basic step-by-step procedures for the diagnosis of a
no-start condition on carbureted and fuel injected vehicles.
• O2 Sensor & Feedback System Analysis—provides basic definition and
theory information for the following O2 sensor topics:
• Air Fuel Ratio Sensors
• Correct PCM Response (includes configured meter test)
• Heated Oxygen Sensor
• Non-Heated Oxygen Sensor
• Open and Closed Loop
• Oxygen Sensor Types
• Understanding Oxygen Sensors (includes configured meter test)
• Snap-on Automotive Theory— provides basic theory information on multiple
topics including:
• Air Conditioning
• Diagnosing Battery Draws
• Diesel Particulate Filters
• Electronic Parking Assistance
• HID Headlights
• Hybrid Vehicles
•LIN-BUS
• Supplemental Restraint Systems
• Tire Pressure Monitoring (TPMS)
• Test Tips—provides basic testing information, tips and procedures for specific
tests and meter operations. Topics may include:
• Alternator Ripple Test
• EVP Sensor Test
• Frequency, Pulse Width and Duty Cycle Test
• Graphing AC Voltage
• Injector Pulse Width Test
• Parasitic Draw Test
• Reading Pulsed DTC’s
• TPS Sweep Test
• Using Cursors
• Using Pressure Transducers
• Using Triggers
• Wiggle Test
• Zirconia Oxygen Sensor Rise Time
• Theory and Operation—provides basic theory information for the following
topics:
• Oxygen Sensors
• Relays
• 20-minute Current Ramp Classes—provides an introduction to current ramp
testing using the Snap-on Low Amp Current Probes. Snap-on Low Amp
Current Probe operation information is also provided within the Snap-on Low
Amp Probe Reference Manual option. Topics may include:
• Fuel Injector Current Ramp (multiple types)
• Fuel Pump Current Ramp
• Fuel Pump RPM Calculation
• Ignition Coil Current Ramp (multiple types)
• Parasitic Draw
• Snap-on Low Amp Probe Reference Manual
• Using Fuse Box for Current Test Hard to Reach Wiring
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