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Instrument Panel Ground Check

  1. Ground Black/Blue wire at instrument panel 18-pin connector. See IDENTIFYING ELECTRONIC KEYBOARD CIRCUITS illustration. The 18-pin connector is located on right side of dash, near steering column.
  2. If gauges work, repair Black/Blue wire between gauges and ground. If gauges do not work, repair Black/Yellow wire between gauges and fuse panel.


  1. Check for 11-13 volts on Black/Blue wire at instrument panel 18-pin connector. Instrument cluster 18-pin connector is located on right side of dash, near steering column.
  2. If voltmeter reads 11-13 volts, repair Black/Blue wire between gauges and ground. If voltmeter does not read 11-13 volts at 18-pin Black/Blue wire, replace instrument panel assembly.
Fig 1: Identifying Voltmeter Circuit
G90C08304Courtesy of FORD MOTOR CO.