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Add Relay

  1. Disconnect electrical connector from ADD relay. The ADD relay is located below instrument panel on passenger's side of steering column. See Fig 1.
  2. Note ADD relay terminal identification. See Fig 2. Using ohmmeter, ensure continuity exists between terminals No. 2 and 6, and No. 1 and 3.
  3. Apply battery voltage to terminals No. 2 and 6. Using ohmmeter, ensure continuity exists between terminals No. 1 and 4. Replace ADD relay if defective. Reinstall electrical connector.
Fig 1: Identifying ADD Relay
G94E47914Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying ADD Relay Terminals
G94F47915Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002