Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
SMART KEY SYSTEM (for Start Function)
SMART KEY SYSTEM (for Entry Function)
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CAUTION / NOTICE / HINT
NOTICE:
Do not perform "Smart Code Reset" (all key ID erasure) until all malfunctions and symptoms have been confirmed and resolved. If all key ID erasure is performed wi
CUSTOMER PROBLEM ANALYSIS CHECK
HINT: Be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem, and then check for DT
CHECK FOR INTERMITTENT PROBLEMS
NOTICE:
Operation history is stored in the RAM or EEPROM of the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will b
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DESCRIPTION
Symptom
Trouble Area
There are ECUs or sensors that display a communication stop on the bus
diagnostic screen. Or, there are ECUs or sensors that store a communication
stop history on the "Detail" screen.
CAN main
DESCRIPTION The headlight ECU sub-assembly LH or headlight ECU sub-assembly RH stores a DTC if it detects an internal malfunction.
DTC No. Detection Item
DTC Detection Condition Trouble Area
B242C04 Headlight Control Module (Sub) System Internal Failure Detection condition:
How To Proceed With Troubleshooting
Check Bus 3 Line
