Electrical Load Signal (Camry 2.2L 4-Cyl. CNG & Gasoline Models, Camry Solara 2.2L 4-Cyl., Land Cruiser, RAV4, Tacoma 2.4L 4-Cyl. 2RZ-FE, Tundra 4.7L V8 & 4Runner 2.7L 4-Cyl. With A/T)

An input signal is delivered to ELS terminal of Engine Control Module (ECM) to indicate when high electrical output is required. This signal is delivered when items such as rear window defroster or headlights are turned on. ECM may use input signal to maintain proper engine idle speed.