Operation CHARM: Car repair manuals for everyone.

How to Probe Connectors

Connector damage and an intermittent connection can result from improperly probing of the connector during circuit checks. The probe of a digital multimeter (DMM) may not correctly fit the connector cavity. To correctly probe the connector, follow the procedures below using a 'T' pin. For the best contact grasp the 'T' pin using an alligator clip.