Pre-Check

PRECHECK INSPECTION

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Wireless function (Remote control) will not operate.

HINT:The rolling code is the code changing at each time when the wave is transmitted from the transmitter and changing when the wave is synchronized between transmitter side and ECU side.
When the rolling code is not synchronized between the transmitter and ECU, a symptom of "Only LOCK operation is available." appears.
In this case, it goes back to normal by synchronizing the rolling code.
(The method to synchronize it is the same as of the registration of the recognition code.)





1. TRANSMITTER INSPECTION

2. WIRELESS DOOR LOCK ECU AND TRANSMITTER REPLACEMENT
Disassembly and assembly of the transmitter includes details of spare parts and replacement procedure for detective parts found through troubleshooting.
Each part is a precision electronic component so handle with care.
(a) SPARE PARTS AND REPLACEMENT PROCEDURE FOR MALFUNCTIONING PARTS:





- For malfunctioning transmitter:
(1) Prepare a new transmitter.
(2) Registration of recognition code.
(3) Check that door lock remote control operation works.





- For malfunctioning battery:
(1) Prepare a new battery.
(2) Remove the battery from transmitter.
(3) Install a new battery into transmitter.





- For malfunctioning ECU:
(1) Prepare a new ECU.
(2) Remove the ECU from the vehicle.
(3) Install a new ECU in the vehicle.
(4) Registration of recognition code.
(b) REPLACE BATTERY FOR TRANSMITTER





(1) Using a screwdriver, pry outward the cover.





(2) Remove the battery.
(3) Set a new battery into the transmitter.
(4) Install the cover to the transmitter.

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3. REGISTRATION OF RECOGNITION CODE
Follow the flow chart on the shown in the images above to register the transmitter recognition code with the wireless door lock ECU.

HINT:
- If the prescribed conditions are not entered while registering the transmitter code, the wireless door lock ECU returns to normal operation.
- There are 4 modes: add mode, rewrite mode, confirmation mode and erase mode; the mode to use is decided after the recognition code is registered.
- If maximum of 4 recognition codes can be registered.

REFERENCE:
- The add mode is used to retain codes already registered while you register new recognition codes. However, if the number of registered codes exceeds 4 codes, previous registered codes are correspondingly erased in order, starting from the first registered code.
- The rewrite mode is used to erase all previous registered codes before registering new recognition codes. This mode is used before registering new transmitter or wireless door lock ECU.
- The confirmation mode is for confirming how many recognition codes are already registered before you register additional recognition codes.
- The erase mode is used to erase all registered codes and cancels the wireless door lock operation. Use this mode when the transmitter is lost.