DIAGNOSIS SYSTEM
1. DESCRIPTION
The ECU stores trouble codes when malfunctions occur.
The diagnostic system allows for reading of the trouble codes from the DLC3 using the Techstream.
Use the Techstream to help diagnose and repair the problem.
2. CHECK DLC3
(a) Check the DLC3 (See page
).
Problem Symptoms Table
Terminals Of EcuLight bulbs
You may replace the following bulbs yourself. The difficulty level of replacement
varies depending on the bulb. If necessary bulb replacement seems difficult to perform,
contact your Toyota dealer.
For more information about replacing other light bulbs, c ...
Linear Solenoid Circuit (C1298/98)
DESCRIPTION
The AWD control ECU receives signals from each sensor to control clutch pressure
to distribute torque according to the driving conditions.
DTC No.
DTC Detection Condition
Trouble Area
C1298/98
...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL FRONT SEAT WIRE RH (for Front Passenger Side)
(a) Engage each clamp and install the front seat wire RH.
2. INSTALL OCCUPANT CLASSIFICATION ECU (for Front Passenger Side)
3. INSTALL SEAT POSITION SENSOR
4. INSTALL SEA ...