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Tachometer Does Not Function (Gasoline)

  1. Disconnect instrument cluster connector. Disconnect ignition coil connector. Connect self-powered test light between instrument cluster printed circuit connector terminal No. 6 (White wire) and ground. See Figure . If test light does not come on, go to next step. If test light does come on, repair short to ground in White wire.
  2. Connect test light between instrument cluster connector terminal No. 6 (White wire) and ignition coil connector terminal "B" (White wire). If test light comes on, replace instrument cluster. If test light does not come on, repair open circuit in White wire.
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