Circuit Testing for Chevrolet Chevrolet W-Series Commercial W4 (W3500/W4500) 2008

The Circuit Testing section contains the following diagnostic testing information. Using this information along with the diagnostic procedures will identify the cause of the electrical malfunction.

•	Using Connector Test Adapters

•	Probing Electrical Connectors

•	Troubleshooting with a Digital Multimeter

•	Troubleshooting with a Test Lamp

•	Using Fused Jumper Wires

•	Measuring Voltage

•	Measuring Voltage Drop

•	Measuring Frequency

•	Testing for Continuity

•	Testing for Short to Ground

•	Testing for a Short to Voltage

•	Testing for Intermittent Conditions and Poor Connections

•	Inducing Intermittent Fault Conditions

•	Testing for Electrical Intermittents

•	Scan Tool Snapshot Procedure

•	Circuit Protection - Fuses

•	Circuit Protection - Circuit Breakers

•	Circuit Protection - Fusible Links