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Home >> Mazda >> 1983 >> RX-7 GSL, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Auxiliary Control Device >> Component Testing >> Water Temperature Switches >> No. 1 Switch

No. 1 Switch

  1. Remove switch from water pump housing. Place switch in water with a thermometer. Connect ohmmeter to switch connector and gradually heat water.
  2. Continuity should not exist between terminals when temperature reaches 146-170°F (63-77°C). If switch does not respond as described, replace No. 1 water temperature switch.
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