Toyota Venza: System Description

Toyota Venza Service Manual / Networking / Lin Communication System / System Description

SYSTEM DESCRIPTION

1. LIN COMMUNICATION SYSTEM DESCRIPTION

The LIN communication system is used for communication between the components in the table below. If communication cannot be performed through LIN communication because of an open in the communication lines or other reason, the master control ECU of the relevant system will store a DTC. Refer to the table below about the communication bus lines and connected components.

HINT:

Each component has a fail-safe function which activates to maintain the minimum performance of the system and protect the system.

Door Bus Lines

Component	Master Control	LIN Communication DTC Output Function
Main Body ECU (Driver Side Junction Block Assembly)	○	○
Power Window Regulator Motor Assembly (for Driver Side)	-	-
Power Window Regulator Motor Assembly (for Front Passenger Side)	-	-
Power Window Regulator Motor Assembly (for Rear LH Side)	-	-
Power Window Regulator Motor Assembly (for Rear RH Side)	-	-
Multiplex Network Master Switch Assembly	-	-
Sliding Roof ECU (Sliding Roof Drive Gear Assembly)*	-	-

*: w/ Sliding Roof

Certification Bus Lines

Component	Master Control	LIN Communication DTC Output Function
Certification ECU (Smart Key ECU Assembly)	○	○
Power Source Control ECU (Power Management Control Computer Assembly)	-	○
Steering Lock ECU (Steering Lock Actuator Assembly)	-	-

Air Conditioning Bus Lines

Component	Master Control	LIN Communication DTC Output Function
Air Conditioning Amplifier Assembly	○	-
Air Conditioning Control Assembly	-	-

Lighting Bus Lines

Component	Master Control	LIN Communication DTC Output Function
AFS ECU (Headlight Swivel ECU Assembly)	○	-
Inner Rear View Mirror Assembly	-	-

Parts Location

PARTS LOCATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ...

System Diagram

SYSTEM DIAGRAM 1. DOOR BUS LINES 2. CERTIFICATION BUS LINES [w/ Smart Key System] 3. AIR CONDITIONING BUS LINES 4. LIGHTING BUS LINES [w/ Smart Beam] ...

Other materials about Toyota Venza:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE COOLER DRYER (a) Using a 14 mm straight hexagon wrench, remove the cap from the modulator. Text in Illustration *1 14 mm Straight Hexagon Wrench *2 ...

Jam Protection Function Activates During Power Back Door Operation
DESCRIPTION When the jam protection function activates during power back door operation, one of the following may be the cause: 1) improper fit of back door, or a foreign object is stuck in the back door, 2) malfunctioning power back door touch sensor c ...

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The procedure listed below is for the LH side. PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds aft ...