Both of my keyless entry keys have dead batterys. I had an OBD reader connected to it but it wasnt picking anything up.
Hi Doc, I think I would check the battery condition. If its low as I suspect, have the charging system checked. Regards John
SOURCE: obd code p0440 for check engine light on 2000 Toyota Corolla
p0440 code means that the evap system has a leak. This could be caused by a bad or improperly installed gas cap. Either that or the purge solenoid has failed or the canister is plugged and not working properly.
SOURCE: Keyless Entry Key Doesn't Work
Regarding the remote transmitter issue: Take the remote transmitter to your Toyota dealer. Ask them to test your transmitter with their hand-held RF detector. All Toyota dealers are required to have one of these devices. The RF detector will test the remote to see if it is indeed transmitting the proper RF out of the transmitter, and the strength of the RF signal. If there is no signal, the remote has failed (unfortunatly common), and the remote will need to be replaced and reprogrammed to the vehicle. I do this quite regularly, and rarely do I tell customers taht they need to spend 800 dollars for such a simple diagnosis/fix. The keyless system is very reliable. I rarely change the ECU for the keyless, unless somebody somehow gets the ECU wet, then it def needs replaced. Hope this helps.
SOURCE: Toyota Tundra 2005. ABS, Airbag, Tire & cruise dash lights flash
how do you turn the maintenance light off after making oil change?
remove grille and move latch to open hood-boost battery and use key fob to enter or have locksmith or service station use a slim jim or other type of device to unlock door
SOURCE: My 2006 Toyota Tundra SR5 will not go into program mode to program my keyless entry pads
The security system on Toyota products are added by the distributor in your region. Many of those security systems will not allow more than 4 key fobs to be programmed into them. Have you owned this vehicle since it was new? Have you tried to program more that 4 key fobs into it? Have you tried programming it more than 2 times? If you security system has had more than 4 key fobs programmed in then the only way to get it to reprogram is the replace the security unit with a new one. I found this out the hard way and had to replace mine in my 2000 tundra.
NOT TOLD YOU
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