Keyless Entry: Service and Repair

WIRELESS DOOR LOCK CONTROL ECU AND TRANSMITTER REPLACEMENT
Disassembly and assembly of the transmitter includes details of spare parts and replacement procedure for defective parts found through troubleshooting. Each part is a precise electronic components so handle with care.
1. SPARE PARTS AND REPLACEMENT PROCEDURE FOR MALFUNCTIONING PARTS: For malfunctioning transmitter:
(a) Prepare a new battery.
(b) Programs VAC (Vehicle Access Code).
(c) Check that the door lock remote control operation works.






For malfunctioning battery:
(a) Prepare a new battery.






(b) Using a screwdriver, pry out the cover.






(c) Remove the battery from transmitter.
(d) Install a new battery into transmitter.
(e) Check that the door lock remote control operation works.






For malfunctioning ECU:
(a) Prepare a new ECU.
(b) Remove the battery from transmitter.
(c) Install a new ECU in the vehicle.
(d) VAC (Vehicle Access Code) programs.
(e) Check that the door lock remote control operation works.