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2000 Mercury Grand Marquis Battery Light Due to Damaged Alternator Wire Harness Connector

The battery light may illuminate on the instrument panel because the alternator wire harness connector is damaged. A new connector kit is available and should be installed to correct this concern.

Affected Model Years

This issue affects Mercury Grand Marquis model years 1990, 2000, 2003, 2006, .

12 people reported this problem

  • 2000 190,000 Miles
    I have had this problem and replaced the alternator 2 times and battery 2 times. Car now seems to have some electrical problem.
  • 2000 0 Miles
    Battery light will flash for a second every now and than starter Good, at good battery, good..had these things tested alternator good
  • 2000 124,202 Miles
    The deam passional light want work when you turn them out.

Mercury Grand Marquis 2000 Common Problems