P38A Key battery low message

Jon Dor · Feb 23, 2020

Just wondering... when my keyfob battery is changed, imminently, does this potentially open that proverbial can of worms... Key will no longer be recognised, etc? I THINK that being a 2000 model, the key should "sync" when inserted in ignition barrel, or am I just being far too optimistic? Happy Sunday afternoon!

kermit_rr · Feb 23, 2020

I get key battery low too, the batteries are good so I wonder if it's down to the rf antenna being unplugged and not getting a clean signal

Jon Dor · Feb 23, 2020

kermit_rr said:
I get key battery low too, the batteries are good so I wonder if it's down to the rf antenna being unplugged and not getting a clean signal

I know for certain that MY RF antenna is plugged in OK.

wammers · Feb 23, 2020

If battery low is shown as long as you fit new batteries within one minute of removing the old ones no resync should be needed.

Jon Dor · Feb 23, 2020

wammers said:
If battery low is shown as long as you fit new batteries within one minute of removing the old ones no resync should be needed.

That's reassuring, thanks Wammers!
I was going to take to local Timpsons, as they give a life-long warranty, but will do it myself.

Grrrrrr · Feb 23, 2020

kermit_rr said:
I get key battery low too, the batteries are good so I wonder if it's down to the rf antenna being unplugged and not getting a clean signal

I'd check how old the batteries are. RF antenna unplugged can cause issues. Best use Brian's fix or Marty's fix.

tomcat59alan · Feb 23, 2020

I was getting the key battery low warning,one of my new batteries was showing only 1.5v . If you need a resync just put the key in the lock press and hold lock whilst turning key to lock, press unlock button and turn key to unlock.always worked for me. Mines a 98 so doesn't have the coil around the ignition key.

Datatek · Feb 23, 2020

kermit_rr said:
I get key battery low too, the batteries are good so I wonder if it's down to the rf antenna being unplugged and not getting a clean signal

It may be due to corroded battery contacts in the FOB, that was the problem on mine.

kermit_rr · Feb 23, 2020

Datatek said:
It may be due to corroded battery contacts in the FOB, that was the problem on mine.

Mine seem to be ok, it seems to go thru phases, is fine at the mo

Rubberknees · Feb 23, 2020

I have a 2000 and one fob syncs when put in ignition the other is different(see my post syncing key fob P38). Don't know why this is but I have 2 working fobs
As wammers says have new batteries ready and change within 60 seconds and no problems. Check new batteries first as I and one or two others have had problems with new batteries lately

Grrrrrr · Feb 23, 2020

Rubberknees said:
I have a 2000 and one fob syncs when put in ignition the other is different(see my post syncing key fob P38). Don't know why this is but I have 2 working fobs
As wammers says have new batteries ready and change within 60 seconds and no problems. Check new batteries first as I and one or two others have had problems with new batteries lately

Might be worth clearing the RF memory. My key 4 won't sync until car has been opened with key 1. I keep meaning to try it but never get around to it.

P38A Key battery low message

Jon Dor

Well-Known Member

kermit_rr

Very

Jon Dor

Well-Known Member

wammers

No longer with us, RIP

Jon Dor

Well-Known Member

Grrrrrr

Technician, Bodgit & Scarper Ltd

tomcat59alan

Well-Known Member

Datatek

Well-Known Member

kermit_rr

Very

Rubberknees

Well-Known Member

Grrrrrr

Technician, Bodgit & Scarper Ltd

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