Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

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SYSTEM DESCRIPTION IMMOBILISER SYSTEM DESCRIPTION
The immobiliser system is designed to prevent the vehicle from being stolen. This system uses the transponder key ECU assembly that stores the key I
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the immobiliser system.
*: Use the GTS.
PROCEDURE
1. VEHICLE BROUGHT TO WORKSHOP
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REGISTRATION PROCEDURE 1. REPAIR INSTRUCTION
NOTICE: PRECAUTION WHEN REPLACING PARTS
Code registration is necessary when any of the following parts is replaced with a new one. After replacing a
SEE MORE:
DESCRIPTION Refer to DTC P003612. Click here
HINT: Although the DTC title say O2 sensor, these DTCs relate to the air fuel ratio sensor (sensor 2).
DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Note
P227019 A/F (O2) Sensor Signal Biased/Stuck Lea
DESCRIPTION The No. 1 cooler thermistor is installed to the evaporator in the air conditioner unit to detect the temperature of the cooled air that has passed through the evaporator, which is used to control the air conditioning system. It sends signals to the air conditioning amplifier assembly. Th