FOB unlocks all the doors but won't lock them

At first i used to be able to lock all the doors with the FOB. over time it started to work sometimes only, Now it will never lock the doors.

Even when i manually press the lock from the inside it use to lock all the doors now it doesnt do that anymore

TDLR : Fob only opens all the doors, doesn't lock them


What should i be looking to check ? i suppose the alarm module works because the fob sends a signal to unlock and it unlocks fine? (someone with knowledge confirm this please)

Do you have one or two fobs? Do both do the same thing?

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Originally Posted by Daox

Do you have one or two fobs? Do both do the same thing?

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I suppose we can deduce that it isn't the FOB because i use to get in the car and press the driver side lock and all the other doors would lock too. That doesn't work anymore

(i am not an expert so if you have some knowledge of this just let me know why you think its the fob)

EDIT : i only have one FOB can't test your theory

No reason to blame the FOB, just checking.