Guided Component Tests General Information
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• Fuel Pump Current Ramp
• Fuel Pump RPM Calculation
• Ignition Coil Current Ramp (multiple types)
• Parasitic Draw
• Snap-on Low Amp Probe Reference Manual
• Two Channel Tests - provides common tests configured to measure or compare
two signals
• CAN-BUS High/Low
• CKP and CMP Relationship
• EGR Solenoid and Position Sensor
• EVAP Solenoid and Diagnostic Switch
• FlexRay Bus
• Injector and Oxygen Sensor
• Knock Sensor and EST
• MC Dwell and Oxygen Sensor
• Pre and Post Cat Oxygen Sensors
• Throttle Positions 1 & 2
• WSS (Hall Effect Type)
• Transducer Tests - provides common single and dual channel tests configured
to measure various types of pressures, voltage and current. Transducers are
available as optional equipment.
• A/T Line Pressure and Shift Solenoid
• A/T Line Pressure Test
• EGR Temperature Sensor and EGR Vacuum
• Exhaust Back Pressure Test
• Fuel Pressure and Fuel Pump Current
• Fuel Pressure and Fuel Pump Voltage
• Fuel Pressure Test
• Secondary Ignition Tests - provides common information and tests configured
to measure secondary ignition output of various types. Secondary ignition lead
adapters are available as optional equipment.
• Coil near plug
• Coil on plug
• Conventional
• Distributorless
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
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