LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 1987 >> Civic Si >> Repair and Diagnosis >> Engine Performance >> System >> Pulse Air System >> Component Testing >> Vacuum Switch C >> Civic 1500
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Civic 1500

  1. Disconnect vacuum hose No. 15 to vacuum switch C and connect hand vacuum pump to hose. Apply 6 in. Hg (all except Calif. with man. trans.) and 3 in. Hg (Calif. with man. trans.) to switch. Check for voltage at Black/Red wire of vacuum switch C.
  2. Voltage should be present when less than 6 in. Hg (all except Calif. with man. trans.) and 3 in. Hg (Calif. with man. trans.) is applied. If voltage is not present, replace vacuum switch C and retest.
scientia non olet · About LEMON Manuals