LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 1996 >> Aspire 4D Hatchback, Standard >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Panel >> System Tests >> Tachometer Inoperative

Tachometer Inoperative

  1. Tachometer Power Supply Check

    Turn ignition off. Disconnect instrument cluster C210 (Black) connector. Measure voltage at tachometer "+" terminal. If voltage is greater than 10 volts, go to next step. If voltage is not as specified, replace instrument cluster printed circuit board.

  2. Distributor To Instrument Cluster Circuit Check

    Turn ignition off. Disconnect instrument cluster C210 (Black) connector and 3-pin distributor connector. Measure resistance between ground and Yellow/Black wire at instrument cluster connector. Measure resistance of Yellow/Black wire between instrument cluster connector and 3-pin distributor connector. If resistance is greater than 10,000 ohms between instrument cluster and ground, and less than 5 ohms between instrument cluster and distributor, go to next step. If resistances are not as specified, repair Yellow/Black wire.

  3. Tachometer Ground Circuit Check

    Turn ignition off. Disconnect instrument cluster C210 (Black) connector. Measure resistance between ground and tachometer "-" terminal. If resistance is less than 5 ohms, replace tachometer. If resistance is not as specified, replace instrument cluster printed circuit board.
scientia non olet · About LEMON Manuals