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Defogger Relay Check

  1. Remove defogger relay from junction block No. 1. Ensure continuity exists between relay terminals No. 3 and 4. See Fig 1. Continuity should not exist between relay terminals No. 1 and 2.
  2. Apply battery voltage to relay terminal No. 3, and ground relay terminal No. 4. Ensure continuity exists between terminals No. 1 and 2. If continuity is not as specified, replace defogger relay.
Fig 1: Identifying Defogger Relay Terminals
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