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Relay Operation

  1. Apply battery voltage to terminal Nos. 1 and 2. See Fig 1.
  2. Check that there is continuity between terminal Nos. 3 and 4.
  3. Check that there is no continuity between terminal Nos. 1 and 4.
  4. If operation is not as specified, replace the relay.
Fig 1: Testing Headlight Control Relay Operation
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