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Test M - Tachometer Inaccurate

  1. Turn ignition switch to OFF position. Remove instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Disconnect instrument cluster connector C252. See Figure -8. Disconnect ignition distributor module connector (1.8L) or ignition control module connector (1.9L). Measure resistance of Yellow/Blue wire between instrument cluster connector and module connector. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, repair open in Yellow/Blue wire and retest system.
  2. Turn ignition switch to OFF position. disconnect instrument cluster connector C252. Measure resistance of Black/Green wire between cluster connector and ground. If resistance is less than 5 ohms, replace tachometer and retest system. See PRINTED CIRCUIT  under REMOVAL & INSTALLATION. If resistance is more than 5 ohms, repair open in Black/Green wire and retest system.
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