Toyota Tundra Service Manual: System Diagram

SYSTEM DIAGRAM

Communication table:

Sender	Receiver	Signal	Line
Main Body ECU	Combination Meter	Front Door Courtesy Light Switch	CAN
Main Body ECU	Combination Meter	Unlock Warning Switch	CAN

Toyota Tundra Service Manual > Can Communication System: Lost Communication with "Door Control Module A" (U0199)
DESCRIPTION DTC No. DTC Detection Condition Trouble Area U0199 There is no communication from the outer mirror control ECU assembly LH. Outer mirror control ECU assembly LH CAN branch wire or connector Power source or inside of outer mirror control ECU assembly LH Outer mirror control ECU assembly L ...

Toyota Tundra Owners Manual