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Vacuum Pump Relay

  1. Using a DVOM, check continuity between relay coil terminals with relay not energized. Resistance should be 70 ohms between terminals No. 1 and 2. DVOM should show infinity between terminals No. 3 and 4. SeeFig 1 .
  2. Apply battery voltage to terminals No. 1 and 2. DVOM should read continuity between terminals No. 3 and 4.
Fig 1: Vacuum Pump Relay Terminal Numbers & Location
G64826Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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