Toyota Tundra Service Manual: System Description

SYSTEM DESCRIPTION

1. LIN COMMUNICATION SYSTEM DESCRIPTION

• The LIN communication system is used for communication between the components below.
• The LIN communication system has a component as a control master.

(a) Window and Sliding Roof Components that Use LIN Communication Bus (for CrewMax)

(1) Main Body ECU (Multiplex Network Body ECU)*1

(2) Power Window Regulator Master Switch Assembly*2

(3) Front Power Window Regulator Motor Assembly LH*2

(4) Front Power Window Regulator Motor Assembly RH*2

(5) Sliding Roof Drive Gear Sub-assembly (Sliding Roof ECU)*3

HINT:

• *1: Control master
• *2: for Power Window Control System (w/ Jam Protection Function)
• *3: w/ Sliding Roof System

(b) Heater Components that Use LIN Communication

(1) Air Conditioning Amplifier Assembly*

HINT:

*: Control master

(2) Integration Air Conditioning Control Assembly

2. LIN COMMUNICATION SYSTEM DTCs

The control master component shown below outputs LIN communication system DTCs when there is a malfunction in the LIN communication. If a LIN communication stops, the control master of that part of the LIN communication system outputs DTCs.

(a) Main Body ECU (Multiplex Network Body ECU)