If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible.
- Visible symptoms
• Fluid leaks under the vehicle (Water dripping from the air conditioning after use is normal.) • Flat-looking tires or uneven tire wear • Engine coolant temperature gauge needle continually points higher than normal
- Audible symptoms
• Changes in exhaust sound • Excessive tire squeal when cornering • Strange noises related to the suspension system • Pinging or other noises related to the engine
- Operational symptoms
• Engine missing, stumbling or running rough • Appreciable loss of power • Vehicle pulls heavily to one side when braking • Vehicle pulls heavily to one side when driving on a level road • Loss of brake effectiveness, spongy feeling, pedal almost touches the floor
System Diagram
SYSTEM DIAGRAM
1. AUTOMATIC LIGHT CONTROL SYSTEM
2. LIGHT AUTO TURN-OFF SYSTEM
Communication Table
Transmitter
Receiver
Line
Data Name
Certification ECU (Smart Key ECU Assembly)
Mai ...
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Vehicles with smart key system:
Turn the “ENGINE START STOP” switch off.
Vehicles without smart key system:
Turn th ...
Lost Communication with Rear Gate Module (U0230)
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
U0230
No communication from the power back door ECU (back door motor unit)
or back door closer ECU continues.
Power ...