Circuit Testing Procedures - Non-DTC-Based Diagnostics

• Description
  • Circuit Functions
  • Circuit Information
• Warning
  • Wiring Warnings
• Diagnosis and Testing
  • Wiring Harness Testing
    • Troubleshooting Tools
    • Intermittent And Poor Connections
    • Troubleshooting Wiring Problems
• Standard Procedure
  • Check A Battery Or Ignition Voltage Circuit With A 12-Volt Test Light
  • Check A Circuit For A Short To Ground
  • Check A Circuit For Voltage
    • Theory of Operation
  • Check A Ground Circuit For An Open Using A 12-Volt Test Light
  • Check For A Short Between Multiple Circuits
  • Check For An Excessive Current Draw
  • Check The Resistance In A Circuit Using An Ohm Meter
  • Check The Voltage On A 5-Volt Supply Circuit
  • Electrostatic Discharge (ESD) Sensitive Devices
  • Voltage Drop Test
    • Theory of Operation
    • Wire Splicing
  • Removal
    • Terminal Removal
  • Installation
    • Terminal Installation