System Diagram

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Lighting System Diagram (1 Of 3)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Identifying Lighting System Diagram (2 Of 3)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Identifying Lighting System Diagram (3 Of 3)

INPUT AND OUTPUT SIGNALS OF EACH ECU

Transmitting ECU (Transmitter)	Receiving ECU	Signals	Communication method
Body ECU	Front Controller	Headlight ON signal High beam ON signal DRL ON demand signal	BEAN
Combination switch ECU	Body ECU	Light SW auto signal Light SW tail signal Light SW head signal Light SW high beam signal Front fog SW signal Lighting system passing signal Right turn signal Left turn signal	BEAN
ECM	Body ECU	Alternator L terminal signal Shift position P signal	CAN - BEAN