XJ40 ( XJ81 ) 1986 - 1994

88 XJ6/XJ40 VCM problem

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  #2  
Old 01-08-2008, 03:19 PM
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Default RE: 88 XJ6/XJ40 VCM problem

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Hey there absoluteze n welcome to the forum.
I am not your best source of info for sure on thse models, that'd have to be Ken, Jose and maybe Jag genius.
I've done a bit of research however and come up with this. Not sure if it'll help or not but sounds like you're about willing to try anything.


VCM Display
Intermittent loss of the Vehicle Condition Monitor display.

The most common cause of this is a failure of the printed circuit solder connections to the transformer which supplies the high voltage to the fluorescent display, especially if a thump to the front top edge of the instrument momentarily brings on the display.
Remove the Instrument panel completely, take off the back, take sensible anti-static precautions remove the small circuit board at the opposite end from the monitor display and you will see the transformer. Examine the pin connections with a magnifying glass as the cracks can be difficult to see re solder and all will be OK.
Hope it helps
Good luck
Jim
 
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Old 01-10-2008, 09:14 PM
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Default RE: 88 XJ6/XJ40 VCM problem

I like your idea better than mine in the General Tech Help forum Jim. Different paths lead to the same destination!!!
 
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Old 01-10-2008, 09:29 PM
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Default RE: 88 XJ6/XJ40 VCM problem

Before u go removing the Instrument panel check the relay boxes and the circuit boxes. Idk how different an 88 is to an 93, but I'm assuming urs uses relays and circuits...there should be circuit boards on the door side of the front seats.
 
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