Pass The ASE Study Guides

ase test prep

The industry’s most extensive selection of specialized training materials to help you pass your ASE tests… GUARANTEED!

Buy Now Button

Motor Age Training On-Demand


In-depth individual video training courses, on-demand, for techs and managers at all levels of skill and experience on a wide variety of automotive subjects.

Watch Now Button

Motor Age Training CONNECT

motor age connect

A cutting-edge, highly organized and detailed subscription training program with full course tracks and high production value.

Connect Free Trial Button


Actuator Voltage & Current Testing

Available Formats: eBook

Motor Age Training Motor Age Training




Product Details:

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.


Once purchased, this digital book can be viewed through your account page, which is automatically created for all customers. PleaseAT refer to your order confirmation email for further details. Your subscription to this digital book is valid until ATG updates the book. Our E-books are currently only compatible with the latest versions of all browsers except for Safari. For the best user experience please download one of the latest browser versions We're sorry for the inconvenience.


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