PROBLEM SYMPTOMS TABLE
HINT:
Symptom |
Suspected Area |
Link |
---|---|---|
The message "Forward Camera System Unavailable Clean Windshield" is frequently displayed |
Non-Toyota genuine front wiper blades are installed |
- |
The front wiper rubbers are worn |
- |
|
A sticker, accessory or other object is obstructing the forward recognition camera |
- |
|
There is snow, frost, dirt, dust or oil on the windshield glass, or the windshield glass is fogged up |
- |
|
A glass coating has been applied to the windshield glass |
- |
|
The windshield glass is chipped or cracked |
- |
|
Non-Toyota genuine windshield glass is installed |
- |
|
Forward recognition camera |
|
|
The message "Forward Camera System Unavailable" is frequently displayed |
Immediately after the engine is started |
- |
The cabin temperature is extremely high |
- |
|
The cabin temperature is extremely low |
- |
|
Forward recognition camera |
|
|
A system that uses the forward recognition camera does not operate |
Power source circuit |
|
Forward recognition camera |
|
Stop Light Relay Circuit (C1A4B)
DESCRIPTION
The skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake
actuator assembly)*2 sends a stop light operation request signal to the stop light
relay (stop light switch assembly). If the skid control ECU (master cylinder solenoid)*1
or skid control ECU (brake actua ...
Radar Cruise Control Presence Determination Malfunction (Engine / HV) (C1A52)
DESCRIPTION
DTC C1A52 is stored when the ECM cannot recognize the millimeter wave radar sensor
assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
MIL
C1A52
Radar Cruise Control Presence Determin ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
Text in Illustration
*1
Main Body ECU (Multiplex Network Body ECU)
-
-
(a) Disconnect the driver side junction block and main body ECU (multiplex network
body ECU) connect ...