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• Probing Tools - These tools are used for probing terminals in connectors (Fig. 4)Select the proper size INTERMITTENT AND POOR CONNECTIONS Most intermittent electrical problems are caused by faulty electrical connections or wiring. It is also • Connectors are fully seated • Spread terminals, or terminal push out • Terminals in the wiring assembly are fully seated into the connector/component and locked into • Dirt or corrosion on the terminals. Any amount of corrosion or dirt could cause an intermittent prob- • Damaged connector/component casing exposing the item to dirt or moisture • Wire insulation that has rubbed through causing a short to ground • Some or all of the wiring strands broken inside of the insulation • Wiring broken inside of the insulation TROUBLESHOOTING WIRING PROBLEMS When troubleshooting wiring problems there are six steps which can aid in the procedure. The steps diagnosis. If the vehicle is equipped with these items, (1) Verify the problem. forming operational checks on components that are (3) Analyze the symptoms. Use the wiring dia- grams to determine what the circuit is doing, where (4) Isolate the problem area. check for proper operation of all items on the STANDARD PROCEDURE - TESTING FOR (1) Connect the ground lead of a voltmeter to a known good ground (Fig. 5). (2) Connect the other lead of the voltmeter to the selected test point. The vehicle ignition may need to Fig. 4 PROBING TOOL 1 - SPECIAL TOOL 6801 Fig. 5 Testing for Voltage Potential 8Wa - 01 - 6 8Wa-01 WIRING DIAGRAM INFORMATION XJ WIRING DIAGRAM INFORMATION (Continued) 2001 JEEP CHEROKEE |