Spark Test: Notes

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.

NOTE: On Avalon, Camry, Camry Solara, Highlander, Land Cruiser, Sequoia, Sienna and 4Runner, an engine immobilizer system may be used. When performing spark test, it may be necessary to substitute or replace Engine Control Module (ECM). On models with engine immobilizer system, if ECM is replaced, ECM must be programmed with proper ignition key code for engine immobilizer system. Models equipped with engine immobilizer system may be identified by looking at ignition key. On models equipped with engine immobilizer system, top of ignition key is thicker than a standard ignition key, as a transponder chip is incorporated into top of ignition key. For programming procedures, see COMPUTER RELEARN PROCEDURES - TOYOTA article in GENERAL INFORMATION, or appropriate ENGINE IMMOBILIZER SYSTEMS article in ACCESSORIES & EQUIPMENT.