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Home >> Jaguar >> 1985 >> XJ-S >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - LUCAS/BOSCH P >> Testing >> THERMOTIME Switch Test >> Notes
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THERMOTIME Switch Test: Notes

  1. To test thermotime switch, determine temperature rating of switch. The switch is rated at 59°F (15°C) or 95°F (35°C). The rating is stamped on flat part of switch body.
  2. Measure coolant temperature. The test procedure to use depends on whether coolant temperature is above or below the rated value of switch.