Toyota Corolla Cross: Problem Symptoms Table
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 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.
- Inspect the fuses and relays related to the system before inspecting the suspected areas below.
- If the problem occurs in certain locations or times of day, the possibility of wave interference is high.
- If a malfunction occurred after optional components were installed by the dealer, check if there is wave interference from the components.
|
Symptom | Suspected Area |
Link |
|---|---|---|
|
Power source mode does not change to ON or ACC |
Smart key system (for Entry Function) |
|
|
Affected by wave interference | ||
|
Transmitter battery | ||
|
Electrical key transmitter sub-assembly | ||
|
No. 1 indoor electrical key antenna assembly (front floor) | ||
|
No. 3 indoor electrical key antenna assembly (inside luggage compartment) | ||
|
Engine switch | ||
|
Wire harness or connector | ||
|
Power distribution box assembly | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Power source mode does not change to ON |
Wire harness or connector |
|
|
Relay | ||
| Power distribution box assembly | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Power source mode does not change to ACC |
Wire harness or connector |
|
|
Relay | ||
| Power distribution box assembly | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Only +BA power source mode does not operate correctly |
Smart key system (for Entry Function) |
|
|
Wireless door lock control system |
| |
|
Power door lock control system |
| |
|
Power distribution box assembly |
| |
|
New key cannot be registered |
LIN communication system |
|
|
Meter / gauge system | ||
|
Reregistration | ||
|
Electrical key transmitter sub-assembly | ||
|
ID code box (Immobiliser code ECU) | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Additional key cannot be registered |
Smart key system (for Start Function) |
|
|
Steering lock function | ||
|
Electrical key transmitter sub-assembly | ||
|
ID code box (Immobiliser code ECU) | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
New key registration warning message is not displayed |
Lighting system (int) |
|
|
Meter / gauge system | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Security indicator light does not blink |
Wire harness or connector |
|
|
Security indicator light | ||
|
Main body ECU (Multiplex network body ECU) | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Immobiliser system does not operate properly |
Communication ID registration was defective |
|
|
Wire harness or connector | ||
|
ID code box (Immobiliser code ECU) | ||
|
ECM | ||
|
System malfunction message is displayed on the multi-information display |
Smart key system (for Entry Function) |
|
|
Smart key system (for Start Function) | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Electronically controlled brake system |
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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 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 deciding whether a
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Smart Key System (for Start Function)
DTC No. Detection Item
Link B227111
IG Circuit Short to Ground
B227411 ACC Circuit Short t
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Definition Of Terms
DEFINITION OF TERMS
Term Definition
Monitor Description Description of what the motor generator control ECU monitors and how to detects malfunctions (monitoring purpose and its details).
Related DTCs A group of diagnostic trouble codes that are output by the motor gene
Unlocking and locking the
back door from the outside
■ Smart key system (if
equipped)
Carry the electronic key to
enable this function.
Unlocks all the doors
The doors cannot be unlocked for 3
seconds after the doors are locked.
Locks all the doors
Check that the door is securely
locked.
■Luggage compartment light
The luggage compartment
