Programming and Relearning
HYBRID VEHICLE IMMOBILIZER SYSTEMREGISTRATION PROCEDURE
1. THE COMMUNICATION BETWEEN THE HYBRID VEHICLE CONTROL ECU AND THE TRANSPONDER KEY ECU IS AS FOLLOWS
a. When the ignition is turned ON, the transponder key ECU checks if the key is pre-registered or not and sends the check result to the hybrid vehicle control ECU.
b. When the hybrid vehicle control ECU confirms that the key is pre-registered, it transmits its own ID (random numbers) to the transponder key ECU.
c. Receiving the ID, the transponder key ECU calculates internally and sends the calculated result back to the hybrid vehicle control ECU.
d. The hybrid vehicle control ECU rechecks the calculation inside the ECU.
When the calculation result corresponds to its own ID, this enables the engine to start.
2. PLEASE DO THE FOLLOWING PROCEDURES WHEN YOU EXCHANGE TRANSPONDER KEY ECU
HINT: When replacing the transponder key ECU or hybrid vehicle control ECU, start the engine after leaving it for more than 30 minutes with the ignition switch ON position.
a. (Case 1):
Replace the transponder key ECU. -> Register the new transponder key codes. -> Leave more than 30 minutes with the ignition switch ON. -> Start the engine.
b. (Case 2):
Replace the hybrid vehicle control ECU. -> Leave more than 30 minutes with the ignition switch ON. -> Start the engine.
c. (Case 3):
Replace the transponder key ECU and hybrid vehicle control ECU. -> Register the new transponder key codes. -> Start the engine.
3. IF ALL KEYS ARE LOST, OBSERVE THE FOLLOWING
a. Purchase a new transponder key ECU and a new key.
b. Replace the transponder key ECU with new one.
c. Insert a new key into the key cylinder, turn the ignition switch ON and leave it as it is for 30 min.
4. SETTING HYBRID VEHICLE IMMOBILIZER SYSTEM
a. Removing a key from the key cylinder sets hybrid vehicle immobilizer system.
b. When 20 sec is elapsed after the key is turned from ignition switch ON to ACC or LOCK, the hybrid vehicle immobilizer is set.
5. UNSETTING HYBRID VEHICLE IMMOBILIZER SYSTEM
Insert a key into the key cylinder (Under this condition, transponder key ECU starts communication with the transponder chip built in the key.
When the ID code in the chip coincides with that registered in ECU consecutively 2 times, the hybrid vehicle immobilizer system is reset).
6. KEY REGISTRATION IN AUTOMATIC REGISTRATION MODE
a. Registration of a new transponder key.
HINT:
- This must be done when you install a new transponder key ECU.
- It is possible to register up to 2 master key codes and a sub key code.
- In the automatic registration mode, the last key registered becomes sub-key.
b. Initial condition: Battery connected, no key in key cylinder.
HINT:
- When a key is not inserted in the key cylinder on the automatic registration mode, the security indicator always lights on.
- When the immobilizer system operates normally and the key is pull out, the security indicator blinks.
- When key code registration could not be performed on the automatic registration mode, code 2-1 is output from the security indicator and when inserting the already registered key, code 2-2 is output.
c. Automatic registration mode completion
If completing the mode forcibly when more than 1 key code have been registered on the automatic registration mode, perform the following procedures.
After 1 more key code have been registered with master key, turn the ignition switch from LOCK to ON 5 times within 10 secs. after inserting the already registered key or without pulling the key out.
7. REGISTERING MASTER KEY
Initial condition: All doors closed, not key in cylinder.
8. REGISTERING SUB-KEY
Initial condition: All doors closed, not key in cylinder.
9. ERASURE OF TRANSPONDER KEY CODE
a. Do this operation to erase transponder key registration from the transponder key ECU.
HINT: Delete all other master and sub-key codes leaving the master key code to use the operation. When using the key which was used before deletion, it is necessary to register the code again.
b. Initial condition: All doors closed, not key in cylinder.