Precautions For Electrical Inspections

When using electrical test equipment, insert the probe of the tester into the wire side of the connector.
Do not insert the probe of the tester into the terminal side of the connector, and do not tamper with the connector.

Fig 1: Precautions For Electrical Inspections
Courtesy of KIA MOTORS AMERICA, INC.
Use a u-shaped probe. Do not insert the probe forcibly.
Use specified service connectors for troubleshooting.
Using improper tools could cause an error in inspection due to poor metal contact.