OEM 2002 Toyota Camry Transmitter

2002 Toyota Camry Parts Questions & Experts Answers

• Q: How to replace the factory-installed keyless entry transmitter on 2002 Toyota Camry?

  A: The first step to replace the original keyless entry transmitter involves registering the recognition code. When using the add mode the system maintains existing codes and enables new code registration although it deletes the oldest codes one by one when the limit of 4 reaches. The rewrite mode eliminates registered codes before adding new ones as an optimal choice for transmitter or door control receiver replacement. Users should employ the prohibition mode when their transmitters are lost because this mode both removes all codes and disables wireless door lock functionality. With the confirmation mode the device verifies the number of registered codes before continuing to record more. The car needs to be prepared with these conditions in place: absence of the key from the ignition and driver door open and unlocked. Start by taking the key from the ignition cylinder twice in 5 seconds followed by closing and opening the driver door twice after 40 seconds before putting the key back and shutting the door. Perform the ignition switch procedure by first setting it to ON then returning it to LOCK at a pace of one second per iteration 1 through 5 before key removal. A LOCK-UNLOCK sequence initiated by the MPX body ECU will occur within the span of three seconds which indicates the selected mode. The LOCK-UNLOCK operation in confirmation mode carries two implications: two recorded codes trigger a double LOCK-UNLOCK execution and the absence of registered codes triggers a five-time execution sequence. Operation of the transmitter for registration begins by mastering add or rewrite mode within 40 seconds followed by simultaneous LOCK and UNLOCK switch activation for 1.0 to 1.5 seconds before holding one switch longer than 1.0 seconds within 3 seconds. A successful registration will result in one LOCK-UNLOCK sequence but two sequences indicate failure which requires restarting the process. The registration process should begin again within 40 seconds after each attempt but clients must remember to register a maximum of 4 recognition codes at a time. The system completes registration through one of these events occurring: the expiration of 40 seconds since the door control relay response or driver door opening or ignition key insertion or registering four recognition codes.