Most intermittents are caused by faulty electrical connections
or wiring. Some items to check are:
• | Poor mating of connector halves, or terminals not fully seated
in the connector body (backed out). |
• | Dirt or corrosion on the terminals--The terminals must be
clean and free of any foreign material which could impede proper terminal
contact. |
• | Damaged connector body, exposing the terminals to moisture and
dirt, as well as not maintaining proper terminal orientation with the component
or mating connector. |
• | Improperly formed or damaged terminals-- All connector terminals
in problem circuits should be checked carefully to ensure good contact tension.
Use a corresponding mating terminal to check for proper tension. |
• | J 35616 Connector
Test Adapter Kit must be used whenever a diagnostic procedure requests
checking or probing a terminal. Using the adapter will ensure that no
damage to the terminal will occur, as well as giving an idea of whether
contact tension is sufficient. |
• | Poor terminal to wire connection-- Some conditions which
fall under this description are poor crimps, poor solder joints, crimping
over wire insulation rather than the wire itself, corrosion in the wire
to terminal contact area, etc. |
• | Wire insulation which is rubbed through, causing an intermittent
short as the bare area touches other wiring or parts of the vehicle. |
• | Wiring broken inside the insulation. This condition could cause
a continuity check to show a good circuit, but if only one or two strands
of a multi-strand type wire are intact, resistance could be far too high. |
To avoid any of the above problems when making wiring or terminal repairs,
always follow the instructions for wiring and terminal repairs.