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Cluster Will Not Dim

  1. Turn ignition switch to RUN position. Turn headlights on. Dimmer should control cluster illumination from 65 percent to almost off. If cluster dims properly, system is okay.
  2. If cluster does not dim properly, disconnect battery ground cable. Remove cluster. Reconnect battery ground cable. Turn ignition switch to RUN position. Turn headlights on. Voltage at pin No. 13 of cluster connector "A" should vary from 5 volts to battery voltage while operating dimmer. If voltage varies between 5 volts and battery voltage, system is okay. If voltage does not vary as specified, replace cluster and affix odometer sticker to door pillar.
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