Guided Component Tests
Training and Classes
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4.2.1 Power User Tests
Power User Tests
provide you quick access to preconfigured meter tests for a
number of common automotive system tests. Most tests provide onscreen help and
testing information along with a description of the test and the expected results,
including known good waveforms.
Here is a sample listing of the types and specific tests that may be available within
Power User Tests:
•
Current Probe Tests - provides common tests configured to use the Snap-on Low
Amp Current probes or generic 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.
• 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
•
Dual 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
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)
