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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 1-16.
  2. Check circuit opening relay operation by applying battery voltage and ground and checking continuity between specified terminals. See Fig 1-16. Replace circuit opening relay if defective.
NOTE: Circuit opening relay may also be identified using appropriate illustration in THEORY/OPERATION article in the ENGINE PERFORMANCE section or wire color. See appropriate wiring diagram in appropriate WIRING DIAGRAMS article in the ENGINE PERFORMANCE section.
CIRCUIT OPENING RELAY LOCATION

Application Location
Pickup Behind Passenger's Kick Panel, Above ECM
Fig 1: Testing Circuit Opening Relay - Checking Continuity (1 Of 2)
G93D79908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing Circuit Opening Relay - Checking Continuity (2 Of 2)
G93E79909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Testing Circuit Opening Relay - Checking Operation
G93H79910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002