XK8 / XKR ( X100 ) 1996 - 2006

XK8 1998

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Old May 20, 2018 | 08:32 AM
  #1  
Fix717's Avatar
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Default XK8 1998

My xk8 sat for 4 months
I put a new battery on
but now state s .. gearbox issue ? Traction control issue and sometimes electrics work/don’t work
and amp meter reads 17
all since changing the battery like for like
been on computer no faults !
Please any advice would be appreciated
 
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Old May 20, 2018 | 09:21 AM
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Welcome to the forum Fix717,

I've moved your question from General Tech Help to XK8/XKR forum. Members here with the same model will be able to help.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham
 
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Old May 20, 2018 | 10:40 AM
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The error messages may be nothing but phantoms. It doe's happen.
I would try a hard reset and see if that solves the problem.
Remove the negative cable from the battery. Hold the negative cable against the positive cable and keep it there for 15 seconds. Then reattach the negative cable and start the vehicle.
I would also while you are in there remove and polish both the battery terminals and the cable ends before reinstalling. Clean cables first then attach the positive and perform the HARD RESET.
 
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Old May 21, 2018 | 09:30 AM
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Default Thank you

[thank you for the reply
have tried your suggestion without any improvement
cheers pere




Originally Posted by avern1
The error messages may be nothing but phantoms. It doe's happen.
I would try a hard reset and see if that solves the problem.
Remove the negative cable from the battery. Hold the negative cable against the positive cable and keep it there for 15 seconds. Then reattach the negative cable and start the vehicle.
I would also while you are in there remove and polish both the battery terminals and the cable ends before reinstalling. Clean cables first then attach the positive and perform the HARD RESET.
 

Last edited by GGG; May 21, 2018 at 09:55 AM. Reason: Insert QUOTE start code
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Old May 21, 2018 | 10:14 AM
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Amp meter reads 17? Or do you mean volt meter? Is this the meter on the dash or external meter? If it's 17 volts you have a regulator problem. You didn't get the battery backwards initially, did you?
 
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Old May 21, 2018 | 11:47 AM
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Default Xk8 1997 R

thanks for the reply.
No out brand new battery on like for like after sitting for 3/4 months
no issues before
low miles 55k
yes meter on dash varies between 13-17
13 being normal
as previously said starts fine
“gearbox fault” “traction control fault”
”stability control fault”
sometines all electrics stop ...windows indicators etc
turn off restart and they work .... or not ??
thanks again for the reply
new to the site but seems very good
 
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Old May 21, 2018 | 04:10 PM
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+1 on RJ's comment.

Does sound like a regulator issue. When mine went south I got lots of similar spurious messages, the interior lights would flicker, and the motor speed would 'pulse' in sync with the lights at tickover.

I'd also check that the connections to the high-current protection module in the trunk are clean and nipped up. See this post by GGG:
https://www.jaguarforums.com/forum/x...9/#post1877901

Do be wary as 17 volts could damage the electronics.
 
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