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Headlight Relay

NOTE: Headlight relay may also be referred to as headlight control relay.
  1. Remove headlight relay from engine compartment fuse/relay box near battery. See Figure. Note terminal identification on headlight relay. See Fig 1.
  2. Using ohmmeter, check that continuity exists between terminals No. 1 and 2 on headlight relay. Apply battery voltage and ground to terminals No. 1 and 2 on headlight relay. Using ohmmeter, check that continuity exists between terminals No. 3 and 4 on headlight relay. Replace headlight relay if defective.
Fig 1: Identifying Headlight Relay Terminals
G98I10320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing Door Unlock Detection Switch
G98D12628Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002