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Engine Main Relay

  1. Disconnect negative battery cable. Remove engine main relay from fuse/relay box. See Figure. Using ohmmeter, ensure continuity and no continuity exists between specified terminals. See Fig 1.
  2. To check relay operation, connect battery to specified terminals of engine main relay. See Fig 1. Using ohmmeter, ensure continuity and no continuity exists between specified terminals. See Fig 1. Replace engine main relay if defective.
Fig 1: Testing Engine Main Relay
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