2008 LR3 Keyless Entry Not Working

Discussion in 'LR3' started by KyleSC, Jul 24, 2018.

  1. KyleSC

    KyleSC New Member

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    Hello

    Got an 08 HSE with the keyless entry not working at all. Stopped, then worked once, then no more (both key fobs). Lights were flashing several times at unlock before it stopped working. There is the common water leaking into the passenger door sill. Looked, but no splice could be found on passengers side. No water leak on drivers side. Checked power at the receiver. It has power, and looks like it is sending a signal out when key fob buttons are pressed.

    Any thoughts? Does someone know the routing of signal wires to lock/unlock doors.
     
  2. DPetty2994

    DPetty2994 Full Access Member

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    Following...

    Our fob sometimes cuts in/out--think it's the common solder issue.
     
  3. DPetty2994

    DPetty2994 Full Access Member

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    How did you verify it was sending signal properly?
     
  4. DPetty2994

    DPetty2994 Full Access Member

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    The Fobs I mean... It would seem unlikely that BOTH fobs would malfunction/battery die at the same time--but it is possible...
     
  5. KyleSC

    KyleSC New Member

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    I checked volts comming off of the blue wire while plugged into receiver. If I remember correctly when lock was pressed volts dropped from around 2 to 1 volt.
     
  6. KyleSC

    KyleSC New Member

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    Not sure if that would be working correctly. Just saw the difference in voltage when key fob button was depressed. Would like to try the signal farther down the line to see if it stopped somewhere. The green wire does have 12 volts on it.

    Have not checked to see if fobs are working correctly. I’m thinking signal should be received if receiver volts change.

    Thanks for everyone’s assistance.
     
  7. Rover2042

    Rover2042 New Member

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    I had a similar issue on my 2006 LR3, I purchased the replacement battery on Amazon, and carefully soldered the new one on the key fob, haven't had any issues since.

    I had found a water leak on my passenger side compartment, do to the windshield cowl seal. As the water went down the windshield on the passenger side it would get under the windshield cowl and drain straight into the interior fan compartment leaking water onto the passenger floor compartment.

    Good Luck
     
  8. Gnomad

    Gnomad Member

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    I had some trouble with my key, it came to me with the buttons worn out so I swapped the fob case with one of the ebay ones. Was still having trouble with erratic operation so I folded up some electrical tape and put it under the battery for some extra support, did the job.
     
  9. KyleSC

    KyleSC New Member

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    Just thought I would give an update. The blue signal wire from CJB to receiver had somehow been severed or worn. Spliced in a new wire to the receiver and problem solved.

    I'm probably one of two people this has ever happened to, but something to check if you cannot solve your keyless entry not working.
     

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