Circuit Opening Relay (4Runner)
Circuit opening relay controls fuel pump circuit. When EFI main relay is energized, EFI main relay provides battery voltage to both sides of circuit opening relay. When proper input signals are delivered to Engine Control Module (ECM), circuit opening relay ground circuit is grounded at ECM terminal FC. Circuit opening relay then provides voltage to fuel pump for fuel pump operation. For circuit opening relay location, see CIRCUIT OPENING RELAY LOCATION table. Circuit opening relay may also be identified by appropriate illustration in appropriate SYSTEM & COMPONENT TESTING article.
CIRCUIT OPENING RELAY LOCATION (1)
| Application | Location | ||
|---|---|---|---|
| Avalon | Top Corner Of Relay Box Behind Driver's Side Kick Panel | ||
| Camry & Camry Solara | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment, Near Battery & Air Cleaner | ||
| Celica | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment, Just In Front Of Strut Tower, Near Battery | ||
| Corolla | Center Relay In Relay Box Behind Driver's Side Kick Panel | ||
| ECHO | In Fuse/Relay Box Behind Driver's Side Of Instrument Panel | ||
| RAV4 | Top Rear Relay In Relay Box Below Driver's Side Of Instrument Panel, Behind Kick Panel | ||
| Sienna | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment, Near Battery & Air Cleaner | ||
| Tacoma | Behind Lower Instrument Panel Cover, Next To Driver's Side Of Steering Column | ||
| Tundra | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment, Next To Battery | ||
| 4Runner | Below Right Corner Of Fuse/Relay Box, Behind Lower Instrument Panel Cover At Driver's Side Of Instrument Panel To Left Of Steering Column, Just Above Hood Release Lever | ||
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