Toyota Corolla Cross: Utility
UTILITY
ALL READINESS
(a) Power Distribution Box Assembly
Body Electrical > Power Distribution Box > Utility
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Tester Display
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All Readiness
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PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the problem symptom. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in orde
TERMINALS OF ECU
NOTICE:
After the ignition switch is turned off, there may be a waiting time before
disconnecting the negative (-) auxiliary battery terminal.
Click here
When disconn
DATA LIST / ACTIVE TEST
READ DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when d
SEE MORE:
MONITOR DESCRIPTION The ECM uses air fuel ratio sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency.
The first sensor, the air fuel ratio sensor (sensor 1), sends pre-catalyst information to the ECM. The second sensor, the air fuel ratio sensor
DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH (A)
judges that there is a communication problem with the blind spot monitor sensor
LH (B).
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U023387
Problem Symptoms Table
Catalyst System Efficiency Below Threshold Bank 1 (P042000)
