Toyota Camry (XV70): System Diagram
SYSTEM DIAGRAM
HINT:
Each tire pressure warning valve and transmitter sends its transmitter ID, temperature and tire pressure information to the tire pressure warning ECU and receiver.
|
Transmitting ECU (Transmitter) |
Receiving ECU | Signal |
Communication Method |
|---|---|---|---|
|
Combination Meter Assembly |
Main Body ECU (Multiplex Network Body ECU) |
Vehicle speed signal |
CAN communication line |
|
Main Body ECU (Multiplex Network Body ECU) |
Combination Meter Assembly |
Tire pressure warning light signal |
CAN communication line |
|
Skid Control ECU (Brake Actuator Assembly) |
Tire Pressure Warning ECU and Receiver |
Speed sensor signal* |
CAN communication line |
- *: w/ Tire Inflation Pressure Display Function
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the tire pressure warning system.
Make sure that the wireless door lock control system has exited diagnostic mode b
Operation Check
OPERATION CHECK CHECK TIRE PRESSURE WARNING SYSTEM FUNCTION
(a) Using the Data List, check that the current tire pressure is normal.
Click here
(1) Slowly reduce the tire pressure of the
Registration
REGISTRATION PROCEDURE 1. BEFORE REGISTRATION
NOTICE:
The transmitter ID is written on the tire pressure warning valve and transmitter. It is not possible to read the transmitter ID after instal
SEE MORE:
Check Bus 1 Line for Short to GND
DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 23 (CA1H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 8 (CA1L) of the central gateway ECU (network gateway ECU) and termina
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table.
Check each symptom by checkin
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