Actuator Voltage & Current Testing
Available Formats: eBook
OEM flowcharts are linear documents that focus on open circuit testing. This process takes a long time, it can also be misleading because faults don’t always show up under flowchart testing conditions. The lab scope offers a way to measure actual circuit activity under actual operating conditions, including combination tests using Scan Tool bi-directional controls or manipulating operating conditions.
This manual is designed to challenge even the most experienced lab scope users with new techniques and tips to leverage the power of the lab scope. However, even new lab scope users will get what they need to take those first steps.
This manual includes numerous real-world examples, including:
- Hand held and PC based Lab Scopes
- Current probes
- Current test alternatives
- Lab Scope voltage drop tips & tricks
- Circuit access tools
- Specific motor, solenoid & other actuator tests
After reading this manual you will have learned new time saving combination tests and strategies for quickly pinpointing elusive faults.
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Section 1: Introduction
- Diagnostic Process
- Ohm’s Law
- Automotive Signals
- Tool Options
- Voltage Measurement
- Current Measurement
- Cool Probes & Adapters
- Lab Scope Setup
Section 2: Actuators
- Relays & Monitoring Strategies
- Solenoid Voltage & Current Tests
- Rotating Motor Current Interpretation
- Stepper Motors
- Throttle Motors
- Oxygen Sensor Heaters