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Civic 1500 Except HF

  1. Disconnect vacuum hose No. 15 to vacuum switch C and connect a hand vacuum pump to the hose. Apply 6 in. Hg (all except Calif. with man. trans.) and 3 in. Hg (Calif. with man. trans.) vacuum to switch. Check for voltage at Black/Red wire of vacuum switch C.
  2. Voltage should be available when a vacuum less than 6 in. Hg (all except Calif. with man. trans.) and 3 in. Hg (Calif. with man. trans.) is applied. If there is no voltage, replace the vacuum switch C and retest.
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