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Test B: Charging System Overcharges

  1. Turn ignition switch to OFF position. Disconnect generator connector A-168. See Figure. Turn ignition switch to ON position. Using DVOM, measure voltage drop between generator connector terminal No. 1 (Yellow/White wire) and battery positive (+) terminal. If measured voltage drop is less than .5 volts, go to next step. If voltage drop is .5 volts or more, repair high resistance in Yellow/White wire. See WIRING DIAGRAMS . Retest system for normal operation.
  2. Turn ignition switch to OFF position. Check ground connections between voltage regulator and generator (2.5 & 3.0L engines only) and generator and engine. See WIRING DIAGRAMS . Repair ground connections as necessary then retest system for normal operation. If all connections are tight and clean, replace generator. See GENERATOR  under REMOVAL & INSTALLATION
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