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Circuit Opening Relay

WARNING: On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS .
  1. Ensure ignition is off. Remove circuit opening relay. See CIRCUIT OPENING RELAY LOCATION  table and Fig 1-Fig 10 .
  2. To test circuit opening relay, using ohmmeter, check for continuity or open between specified terminals on circuit opening relay. See Fig 11 and Fig 12 .
  3. To test circuit opening relay operation, apply battery voltage and ground to circuit opening relay. Using ohmmeter, check for continuity between specified terminals on circuit opening relay. See Fig 11 and Fig 12 . Replace circuit opening relay if defective.
CIRCUIT OPENING RELAY LOCATION (1)

Application Location
Camry & Camry Solara In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment
Celica In Fuse/Relay Box At driver's side Front Corner Of Engine Compartment, Just In Front Of Strut Tower
Corolla Center Relay In Relay Box Behind Driver's Side Kick Panel
ECHO In Fuse/Relay Box Behind Driver's Side Of Instrument Panel
Highlander In Relay Box Just Above Driver's Side Kick Panel
Matrix In Junction Box Behind Driver's Side Of Instrument Panel
MR2 In Relay Box On Firewall At Driver's Side Front Corner Of Engine Compartment
Prius & RAV4 In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment
Tacoma Behind Lower Instrument Panel Cover, Next To Driver's Side Of Steering Column
(1) Circuit opening relay may be marked as CIR OPN relay.
Fig 1: Locating Various Relays (Camry)
G00035224Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Locating Circuit Opening Relay (Camry Solara)
G99D54430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Locating Circuit Opening Relay (Celica)
G99E54431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: Locating Circuit Opening Relay (Corolla)
G98A12518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 5: Locating Circuit Opening Relay (ECHO)
G99F54432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 6: Locating Various Relays (Highlander)
G00015600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 7: Locating Various Relays (MR2)
G00015604Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 8: Locating Circuit Opening Relay (Prius)
G00015596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 9: Locating Circuit Opening Relay & IG2 Relay (RAV4)
G00015592Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 10: Locating Circuit Opening Relay (Tacoma)
G97F06274Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 11: Testing Circuit Opening Relay Or EFI Main Relay (Camry, Celica, Corolla, ECHO, Highlander & Prius)
G98E11472Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 12: Testing Circuit Opening Relay Or EFI Main Relay (Camry Solara, MR2, RAV4 & Tacoma)
G97C06258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002