DESCRIPTION
When the wireless operation can be used to lock and unlock the doors, the communication line between the door control receiver and certification ECU (smart key ECU assembly) is normal. When the entry operation does not operate, one of the following may be the cause: 1) entry cancel function is set through customization; 2) malfunction in entry and start system communication line (electrical key transmitter and vehicle); or 3) wave interference.
INSPECTION PROCEDURE
Note
Before performing the inspection, check that there are no problems related to the "Can Communication System" and "LIN Communication System"
PROCEDURE
READ VALUE USING INTELLIGENT TESTER (KEY CANCEL SWITCH)
Using the intelligent tester, read the Data List.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| Auto Entry Cancel SW | Entry function cancel/ON or OFF | Mode status displayed | - |
| Result | Proceed to |
|---|---|
| Entry function cancel is OFF | A |
| Entry function cancel is ON | B |
| B |
|
PERFORM CANCELLATION OF ENTRY KEY CANCEL FUNCTION Click here |
| A |
|
CHECK WAVE ENVIRONMENT
Move the electrical key transmitter as described below and perform the operation inspection Click here.
Tech Tips
When the electrical key transmitter is brought near the door outside handle or electrical key antenna, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
The transmitting wave of the wireless function and entry function are the same, but the wave logic is different. As a result, it is possible that only the wireless function or only the entry function is affected by wave interference.
Bring the electrical key transmitter near the door outside handle (for driver side), and perform a driver door entry lock and unlock operation check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication may not possible.
Bring the electrical key transmitter near the door outside handle (for front passenger side), and perform a front passenger door entry lock and unlock operation check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication may not possible.
Bring the electrical key transmitter near the rear door outside handle LH, and perform a rear left door entry lock and unlock operation check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication may not possible.
Bring the electrical key transmitter near the rear door outside handle RH, and perform a rear right door entry lock and unlock operation check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication may not possible.
Bring the electrical key transmitter near the indoor electrical key antenna (in center console), and perform an engine start check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the center console, communication may not possible.
Bring the electrical key transmitter near the indoor electrical key antenna (in rear No. 1 seat cushion), and perform an engine start check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the rear No. 1 seat cushion, communication may not possible.
Bring the electrical key transmitter near the indoor electrical key antenna (in rear No. 2 seat cushion), and perform an engine start check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the rear No. 2 seat cushion, communication may not possible.
Bring the electrical key transmitter near the electrical key antenna (in rear bumper), and perform an entry back door open function check.
Note
If the key is brought within 0.2 m (0.656 ft.) of the rear bumper, communication may not possible.
Tech Tips
If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
| Result | Proceed to |
|---|---|
| All operation checks fail | A |
| Some operation checks are normal | B |
| B |
|
AFFECTED BY WAVE INTERFERENCE |
| A |
|
KEY DIAGNOSTIC MODE
Diagnostic mode inspection (door electrical key oscillator).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Driver Side.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
Diagnostic mode inspection (door electrical key oscillator).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Passenger Side.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
Diagnostic mode inspection (door electrical key oscillator).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Driver Side Rear.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
Diagnostic mode inspection (door electrical key oscillator).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Passenger Side Rear.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
Diagnostic mode inspection (indoor electrical key antenna (for Front Floor)).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Front Room.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
Diagnostic mode inspection (indoor electrical key antenna (for Rear 1 Floor)).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Rear Room.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
Diagnostic mode inspection (indoor electrical key antenna (for Rear 2 Floor)).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Back Door (inside).
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
Diagnostic mode inspection (electrical key antenna).
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Back Door (outside).
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
| Result | Proceed to |
|---|---|
| All diagnostic mode inspections fail | A |
| Some diagnostic mode inspections fail (door) | B |
| Some diagnostic mode inspections fail (interior) | C |
| Some diagnostic mode inspections fail (back door) | D |
| All diagnostic mode inspections are normal | E |
| B |
|
GO TO DTC OF OTHER COMPONENTS (PROCEED TO PROBLEM SYMPTOM FLOWCHART FOR EACH DOOR) Click here |
| C |
|
GO TO OTHER FLOWCHART Click here |
| D |
|
GO TO OTHER FLOWCHART Click here |
| E |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| A |
|
REPLACE ELECTRICAL KEY TRANSMITTER
Replace the electrical key transmitter with a new one.
Perform the registration procedure (Refer to Service Bulletin for registration).
| NEXT |
|
CHECK OPERATION
Check the operation of the entry lock function Click here.
| OK |
|---|
| Operates normally. |
| NG |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| OK |
|
END (ELECTRICAL KEY TRANSMITTER IS DEFECTIVE)