Circuit Opening Relay

Ensure ignition is off. Remove circuit opening relay. See CIRCUIT OPENING RELAY LOCATION table. Using ohmmeter, check continuity between specified terminals. See Fig 1-Fig 3 .
Check circuit opening relay operation by applying battery voltage and checking continuity between specified terminals. See Fig 1-Fig 3 . Replace circuit opening relay if defective.

NOTE: Circuit opening relay may also be identified by appropriate illustration in THEORY/OPERATION article in the ENGINE PERFORMANCE Section or wire color. See appropriate wiring diagram in WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section.

CIRCUIT OPENING RELAY LOCATION

Application	Location
P/U & 4Runner	Behind Passenger's Kick Panel, Above ECU

Fig 1: Testing Circuit Opening Relay - Continuity Check

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Testing Circuit Opening Relay - Operation Check (1 Of 2)

Fig 3: Testing Circuit Opening Relay - Operation Check (2 Of 2)