PERFORM KEY DIAGNOSTIC MODE INSPECTION
REPLACE ELECTRICAL KEY TRANSMITTER
REGISTER ELECTRICAL KEY TRANSMITTER
SMART KEY SYSTEM (for Entry Function) - All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate |
DESCRIPTION
When the wireless functions can be used to lock and unlock the doors, communication between the door control receiver and certification ECU (smart key ECU assembly) is normal. When the entry functions do not operate, one of the following may be the cause: 1) entry cancel function is set through customization; 2) malfunction in smart key system communication (electrical key transmitter and vehicle); or 3) wave interference.INSPECTION PROCEDURE
1.READ VALUE USING TECHSTREAM |
Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Key / Data List.
Read the Data List according to the display on the Techstream.
Smart Key (Certification ECU (Smart Key ECU Assembly)) Tester Display Measurement Item/Range Normal Condition Diagnostic Note Auto Entry Cancel SW Entry function cancel / ON or OFF Mode status is displayed - - Result:
Result Proceed to Entry function is ON A Entry function is OFF B
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B | |
2.CHECK WAVE ENVIRONMENT |
Move the electrical key transmitter as described below and perform the operation inspection.
- HINT:
- When the electrical key transmitter is brought near the door outside handle or outside electrical key oscillator, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
- The transmitting waves of the wireless functions and entry functions are the same, but the wave logic is different. As a result, it is possible that only the wireless functions or only the entry functions are affected by wave interference.
Bring the electrical key transmitter near the front RH door outside handle, and perform a front RH door entry lock and unlock operation check.
- NOTICE:
- If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication is not possible.
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Bring the electrical key transmitter near the front LH door outside handle, and perform a front LH door entry lock and unlock operation check.
- NOTICE:
- If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication is not possible.
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Bring the electrical key transmitter near the outside electrical key oscillator (in rear bumper), and perform an entry luggage compartment open function check.
- NOTICE:
- If the key is brought within 0.2 m (0.656 ft.) of the rear bumper, communication is not possible.
- HINT:
- If the inspection result indicates 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:
Result Proceed to Some operation checks are normal A All operation checks fail B
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B | |
3.PERFORM KEY DIAGNOSTIC MODE INSPECTION |
Diagnostic mode inspection
Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Driver Side.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
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Diagnostic mode inspection
Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Passenger Side.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
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Diagnostic mode inspection
Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Luggage (outside).
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
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Diagnostic mode inspection
Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Access / Utility / Communication Check (Key Diag Mode) / Overhead + Front Room.
When the electrical key transmitter is placed on the driver seat or front passenger seat cushion, check that the wireless door lock buzzer sounds.
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Diagnostic mode inspection
Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Rear Room.
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
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Diagnostic mode inspection
Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Luggage (inside).
When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
- Result:
Result Proceed to Some diagnostic mode inspections fail (door) A Some diagnostic mode inspections fail (indoor) B Some diagnostic mode inspections fail (luggage compartment) C All diagnostic mode inspections are normal D All diagnostic mode inspections fail E
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E | |
4.REPLACE ELECTRICAL KEY TRANSMITTER |
Replace the electrical key transmitter.
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5.REGISTER ELECTRICAL KEY TRANSMITTER |
Register the electrical key transmitter (COROLLA_ZRE142 RM000000QYF05AX.html).
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6.CHECK OPERATION |
Check that the entry functions operate normally.
- OK:
- Entry functions operate normally.
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OK | ||
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