Keyless Entry Transmitter: Service and Repair
TRANSMITTER SUB-ASSY MODULE SET DOOR CONTROLREPLACEMENT
HINT: Installation is in the reverse order of removal But the installation is indicated only when it has a point.
1. REMOVE TRANSMITTER SUB-ASSY MODULE SET DOOR CONTROL
CAUTION: Special caution should be taken for handling each component as they are precise electronic components.
a. Using a screwdriver, remove the screw and cover.
CAUTION: Do not pry out the cover forcibly.
HINT: Push the cover with a finger as shown in the illustration, so that there becomes clearance, then pry out the cover from that clearance.
2. REGISTRATION OF RECOGNITION CODE
HINT:
- The add mode is used to retain already registered codes while registering new recognition codes. This mode is used when adding a transmitter. If the number of registered codes exceeds 4, previously registered codes will be correspondingly erased in order, starting from the first registered code.
- The rewrite mode is used to erase all the previously registered codes and register only new recognition codes. This mode is used when exchanging the transmitter or the door control receiver with new one.
- The prohibition mode is used to erase all the registered codes and cancels the wireless door lock function. Use this mode when the transmitter is lost.
- The confirmation mode is for confirming how many recognition codes have already been registered before an additional registration of a recognition code.
a. The vehicle should be in the following conditions.
1. The key is not inserted in the ignition key cylinder.
2. Driver's door is OPENED. (The other doors are CLOSED)
3. Driver's door is UNLOCKED.
b. Perform the followings after the above operations.
1. Insert and remove the key from the ignition key cylinder twice within 5 seconds.
2. After the above operations, close and open the driver door twice within 40 seconds. Then insert the key into the ignition key cylinder and remove it.
3. After the above operations, close and open the driver door twice within 40 seconds. Then insert the key into the ignition key cylinder and close the door.
4. Turn the ignition switch from LOCK to ON and back to LOCK at approx. 1 second interval 1 to 5 times to select the mode. Then remove the key from the ignition key cylinder.
5. MPX body ECU automatically performs the LOCK-UNLOCK operation within 3 seconds to inform the operator of a selected mode.
c. Registration of transmitter:
1. Within 40 seconds after the add mode or the rewrite mode has been selected, press the LOCK and UNLOCK switches on the transmitter switch simultaneously for 1.0 - 1.5 seconds.
2. Within 3 seconds after the above operation, press either one of the switches for more than 1.0 seconds
3. Within 3 seconds after the transmitter switch has been turned OFF, the LOCK-UNLOCK operation will be automatically performed once if the registration of the recognition code of the transmitter is completed correctly. In case the LOCK-UNLOCK operation is performed twice, the registration of recognition code has failed. Perform the registration procedure from the beginning once again.
4. When continuing the registration, register the transmitter within 40 seconds after the previous registration.
HINT: 4 type recognition codes can be registered at one time.
d. If even one of the following conditions is satisfied, registration of recognition codes is completed.
1. 40 seconds have elapsed since the door control relay responds.
2. The driver's door is opened.
3. The key plate is inserted in the ignition key cylinder.
4. 4 type recognition codes are registered at one time.