Toyota Corolla Cross: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- If a problem occurs in certain locations or at certain times of day, check for the possibility of wave interference.
- When the electrical key transmitter sub-assembly is brought near an electrical key and tire pressure warning ECU and receiver (RF band), door outside handle assembly (LF band), indoor electrical key antenna (LF band) or any of the electrical key antennas (LF band), the possibility of wave interference decreases. By doing this, whether wave interference is causing the problem can be checked.
- 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 in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
|
Symptom | Suspected Area |
Link |
|---|---|---|
|
Key vehicle inside lock-in prevention function does not operate |
Affected by wave interference |
|
|
Harness or connector | ||
|
No. 1 indoor electrical key antenna assembly (front floor) | ||
|
No. 3 indoor electrical key antenna assembly (inside luggage compartment) | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Transmitter battery | ||
|
Power distribution box assembly | ||
|
Engine switch | ||
|
All door entry lock/unlock functions and wireless functions do not operate |
Lighting system |
|
|
Power door lock control system | ||
|
Affected by wave interference | ||
|
Code registration | ||
|
Transmitter battery | ||
|
Harness or connector | ||
|
Electrical key transmitter sub-assembly | ||
|
Electrical key and tire pressure warning ECU and receiver | ||
|
Main body ECU (Multiplex network body ECU) | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
All door entry lock/unlock functions do not operate, but wireless functions operate |
Affected by wave interference |
|
|
Electrical key transmitter sub-assembly | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Driver side door entry unlock function does not operate |
Power door lock control system |
|
|
Harness or connector | ||
|
Front door outside handle assembly LH | ||
|
Lighting system | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Front passenger side door entry unlock function does not operate |
Power door lock control system |
|
|
Harness or connector | ||
|
Front door outside handle assembly RH | ||
|
Lighting system | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Driver side door entry lock and unlock functions do not operate |
Power door lock control system |
|
|
Affected by wave interference | ||
|
Harness or connector | ||
|
Front door outside handle assembly LH | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Front passenger side door entry lock and unlock functions do not operate |
Power door lock control system |
|
|
Affected by wave interference | ||
|
Harness or connector | ||
|
Front door outside handle assembly RH | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Driver side door entry lock function does not operate |
Power door lock control system |
|
|
Harness or connector | ||
|
Front door outside handle assembly LH | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Front passenger side door entry lock function does not operate |
Power door lock control system |
|
|
Harness or connector | ||
|
Front door outside handle assembly RH | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Entry interior alarm does not sound |
Meter/gauge System |
|
|
Back door entry unlock function does not operate |
Power door lock control system |
|
|
Harness or connector | ||
|
Back door opener switch assembly | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Back door entry lock and unlock function does not operate |
Power door lock control system |
|
|
Affected by wave interference | ||
|
Harness or connector | ||
|
Back door opener switch assembly | ||
|
Electrical key antenna (outside luggage compartment) | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Back door entry lock function does not operate |
Power door lock control system |
|
|
Harness or connector | ||
|
Back door opener switch assembly | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Touching unlock sensor for certain period of time does not unlock all doors |
Check customize setting (Door Unlock Sensor Touch Time Adjust) |
|
|
Power door lock control system | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Entry lock function does not operate using close & lock function*1 |
Power back door system |
|
|
Entry Exterior Alarm and Answer-back Buzzer do not Sound |
Check customize setting (Wireless Buzzer Response Function) |
|
|
Lighting system | ||
|
Harness or connector | ||
|
Wireless door lock buzzer | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Power distribution box assembly | ||
|
Main body ECU (Multiplex network body ECU) |
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*1: w/ Power Back Door System
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU
NOTICE:
When performing an inspection, make sure that "ACC Customize" is set to "ON" using the multi-display.
Click here
When "ACC Customize" is set to "ON" (ACC supply po
Data List / Active Test
DATA LIST / ACTIVE TEST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part i
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Smart Key System (for Entry Function)
DTC No. Detection Item
Link B27A113
Driver Side Electrical Antenna Circuit Open
B27A213 Fr
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DC/DC Converter Current Sensor Circuit Current Out of Range (P31531D)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC is stored if the value of the reactor current sensor fluctuates excessively. The cause of this malfunction may be one of the following:
Area Main Malfunction Description
Hybrid vehicle transaxle assembly
Open or short circui
Supply Voltage Circuit Circuit Voltage Above Threshold (C123A17)
DESCRIPTION
The power steering ECU assembly distinguishes the ignition switch status as ON
or off through the IG power source circuit.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Warning Indicate
C123A17
