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Circuit Opening Relay

  1. Ensure ignition is off. Remove circuit opening relay. See CIRCUIT OPENING RELAY LOCATION  table. Using ohmmeter, check continuity between specified terminals. See Fig 1 and Fig 2.
  2. Check circuit opening relay operation by applying battery voltage and ground and checking continuity between specified terminals. See Fig 1 and Fig 2. Replace circuit opening relay if defective.
NOTE: Circuit opening relay may also be identified using appropriate illustration in THEORY/OPERATION article or wire color. See appropriate wiring diagram in WIRING DIAGRAMS article.
CIRCUIT OPENING RELAY LOCATION

Application Location
T100 Behind Glove Box, Near Passenger Side Kick Panel, Above ECM
Fig 1: Testing Circuit Opening Relay (Continuity)
G93E79909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing Circuit Opening Relay (Operation)
G93H79910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002