1999 Infiniti G20 Keyless remote will not work on door lock

JNANCE1

MEMBER
1999 INFINITI G20
4 CYL
FWD
AUTOMATIC
178,000 MILES

I have purchased a new remote for this car and reprogramed it. It worked for maybe 2 days and now it does nothing. The doors will not lock or unlock except with the key. Is the control module the next step for the remote entry. I have also purchased new batteries for the remote. The same thing happened when I purchased the car (used). The original remote worked for a few weeks then stopped which prompted me to purchase another remote. How do I check and/or replace the control module?

1 Reply

MERLIN2021

MECHANIC
17,250 POSTS

1. Close and lock all doors. Erase original identity code(s) by inserting and removing key from ignition switch more than 6 times within 10 seconds. Hazard warning lights should flash twice. Turn ignition switch to ACC position. 2. Push any button on new remote controller once. Hazard warning lights should flash twice, indicating ID code has been entered. If identity code cannot be entered, repair multi-remote system. 3. For each additional remote controller to be programmed, manually release door lock, and lock again by using door panel switch and repeat step 2. If no additional remote controllers are to be used, exit programming mode by unlocking and opening driver's door. NOTE: A maximum of 4 remote controllers can be programmed. Any attempt to program more than 4 controllers will be ignored. If same identity code is entered more than once, entry is ignored even though hazard warning lights will still flash twice.
ALL REMOTE CONTROLLER FUNCTIONS INOPERATIVE Perform the following diagnostic procedures: REMOTE CONTROLLER BATTERY CHECK, KEY SWITCH CHECK, DOOR SWITCH CHECK and POWER SUPPLY & GROUND CIRCUIT CHECKS under SYSTEM TESTS. Also, check remote controller function, perform PROGRAMMING NEW ID CODE procedure under PROGRAMMING REMOTE CONTROLLER.