Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
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CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the rear view monitor system.
*: Use the GTS.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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 i
TERMINALS OF ECU
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY
(a) Disconnect the I55 and I253 radio and display receiver assembly
connectors.
(b) Measure the voltage and resistance according to th
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DESCRIPTION
The tire pressure warning ECU and receiver receives signals from the skid control
ECU (brake actuator assembly) via the CAN communication system.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U012987
DESCRIPTION When the mirror heater switch (rear window defogger switch) is operated, the RR DEF relay drive request signal is sent to the air conditioning amplifier assembly and then to main body ECU (multiplex network body ECU) via CAN communication. When the main body ECU (multiplex network body E
How To Proceed With Troubleshooting
Lost Communication with Brake System Control Module "A" Missing Message (U012987)
