Avalon, Camry, Camry Solara, Highlander, Sienna & 4Runner 4.0L
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Remove A/F heater relay. See A/F HEATER RELAY LOCATION table.
- To test A/F heater relay continuity, using ohmmeter, check for continuity and no continuity between specified terminals on A/F heater relay. See Fig 1 and Fig 2 .
- To test A/F heater relay operation, apply battery voltage and ground to A/F heater relay and use ohmmeter to check for continuity between specified terminals on A/F heater relay. See Fig 1 and Fig 2 . Replace A/F heater relay if defective.
A/F HEATER RELAY LOCATION
| Application | Location | ||
|---|---|---|---|
| Avalon | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment | ||
| Camry | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment | ||
| Camry Solara | In Small Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment, In Front Of Battery | ||
| Highlander | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment, Just In Front Of Strut Tower | ||
| Sienna | (1) | ||
| 4Runner 4.0L | In Fuse/Relay Box At Driver's Side Front Corner Of Engine Compartment | ||
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