Hombre XS Space Cab L4-2.2L CPC (1997)
Important:
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The "100 ms RECORD" (100 millisecond record) mode is NOT the runout of time allowed to perform a specific procedure. It is the amount
of time used to record each snapshot of information used for calculating "AVG" when in the "MIN MAX" mode.
Digital Multimeter (DMM) Connections
The previous diagnostic procedure was written to detect intermittents using the DMM set to voltage. Whether using the current, voltage, or resistance
setting to detect intermittents, it is necessary to properly connect the DMM to the circuit.
Following are examples of the various methods of connecting the DMM to the circuit to be checked:
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Backprobe both ends of the connector and either hold the leads in place while manipulating the connector or tape the leads to the harness for
continuous monitoring while performing other operations or test driving. (Do not backprobe "Weather Pack (R)" type connectors.)
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Disconnect the harness at both ends of the suspect circuit where it connects either to a component or to other harnesses.
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Use J 35616-A Connector Test Adapter Kit to connect the DMM to the circuit.
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If the system being diagnosed has a specified pinout or breakout box, it may be used to simplify connecting the DMM to the circuit or for checking
multiple circuits quickly.
Intermittent and Poor Connections
Most intermittence are caused by faulty electrical connections or wiring, although occasionally a sticking relay or solenoid can be a problem. Some items
to check are:
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Poor mating of connector halves, or terminals not fully seated in the connector body (backed out).
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Dirt or corrosion on the terminals. The terminals must be clean and free of any foreign material which could impede proper terminal contact.
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Damaged connector body, exposing the terminals to moisture and dirt, as well as not maintaining proper terminal orientation with the component
or mating connector.
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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.
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The J 35616-A 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.
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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.
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Wire insulation which is rubbed through, causing an intermittent short as the bare area touches other wiring or parts of the vehicle.
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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 repair.
Schematic Symbols
