What pin does what at the plug-
ins behind the instrument cluster ???
Some time ago Richard Dowling created a schematic of the Pre-HE instrument cluster wiring diagram. With his permission I have it on my website at the following link:
Hopefully its of some help.
Hello Garry - here is my own hand written designation, of what I found on my 1991 XJS V12 Coupe instrument panel, as to the circuit paths from the connectors to the instruments and the warning lights - from what I have read, the 1989 XJS V12 should have the similar connections as my 1991 XJS V12 - you will note that there are some differences to the earliar models - hope this helps you - (this drawing is been posted here on Jag-Lovers for the use by anyone that wants to use it)
- Tex Terry, II - 1991 XJS V12 Classic Coupe, 1986 XJS V12 Coupe - sent 10/15/2020 2225hrs. EDT USA.
Garry,
Attached is a chart I created a number of years ago when I fitted a facelift instrument cluster to my wifeās '89 XJS. It fives the function of each plug pin for the '89 and the '94 instrument clusters.[XJS 89 to 94.
Cluster Crossover.pdf|attachment](upload://xWlx9fKhP0AJl43ibrvpTd8RzQU.pdf) (8.8 KB)
OK Lockheedā¦ Here is is where Iām at ā¦ Just got thru refurbishing the new cluster panelā¦ Getting ready for pin swapā¦ Looking at your crossover chart I see you have a āBā 13and14ā¦ I only have 12 at my B connectionā¦ And have the 18 for the A connectionā¦ Whatās going on ??? Victor
I am working through converting my 90XJS 5.3 to a 6.0 + 4l80e from a 94 XJ12. I purchased a 94 XJS 6.0 (6,000rpm tach) as I prefer the styling of the facelift gauges, plus my original cluster is in really poor shape due to corrosion. I have figured out how to match my new 94 XJS cluster odometer mileage to match the existing old one and now I am wrapping up the wiring. Your reference sheet saved me a ton of headache in the conversion as 99% of it was identical for my 1990 XJS. Only issue I am currently facing is the turn signals arenāt showing up on the facelift cluster, they work on the original cluster and they work on the outside of the vehicle. When I compare the 90 vs the 94 XJS electrical schematics, the 89& 90 has diodes just prior to the cluster and also has a lead (pin A4, Light Green Brown wire) that goes to the flasher pin 31. Based on my limited understanding of diodes, it appears if i remove the diodes they should work? Did you remove the diodes from your wire harness?
Thanks!
-Scott
Scott,
, DO NOT DISCONNECT THE DIODES! Others have fallen into the trap of matching the wire colors as well. You must use a straight edge and go straight across the page and ignore the wire colors - the pin functions (priority) must match regardless of the color of the wires - Jaguar is known to be inconsistent in maintaining the wire colors with regard to function. When they run out of a particular color, they will use whatever color they have handy.
In the case of your turn signals, lets start with the left hand turn signal:
The wire for the left turn signal goes to plug A, position 5 (A5) of the '90 instrument panel.
That same wire must now be connected to plug A position 3 (A3) of the '94 instrument panel.
Donāt be confused by the colors not matching, they are there to help follow the wire you are working with, but the wire colors are not consistent panel to panel.
Likewise, for the right side turn signal:
The wire for the right turn signal goes to plug B position 6 (B6) of the '90 instrument pane.
That same wire must now be connected (spliced) to plug B position10 (B10) of the '94 instrument panel. Again, the wire colors donāt match, it is the plug and position (function) that matter.
The chart is laid out such that you only need to use a straight edge and go across the page and find the corresponding plug / position for the same function on the '94 instrument panel. The dialog on the right describes that function.
I have attached a cross over chart for you to work with - Iām not sure which chart you are working with - I made several dependent upon the years of the car. I would suggest you check all your connections to be sure they are correct. When the turn signal connections are correct your panel turn indicators will work correctly.
I am considering changing the format of my charts for a bit more clarity, and a warning about trying to match wire colors vs plugs, position, and function.
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Scott,
I have attached the revised format of the cross-over chart. Just go from the plug on the left ('90), straight across the page to the plug on the right ('94). I hope that makes it more clear.
XJS 90-91 to 94 Cluster Crossover.pdf (116.9 KB)
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Followed Lochheedās direction line for lineā¦ Pulled out cluster pack and have no power to pins for L/R indicator lightsā¦ Hazards work fine and when I do hit L/R indicator on the column I hear breaker open and closeā¦ Any help out there???
Gary,
Did you mean to say ārelayā rather than Breaker? I donāt know that the XJS has any circuit ābreakerā.
Did you ever resolve the problem you had in February that you didnāt have the correct Plugs for the Facelift panel? Apparently, the proper plug pigtails did not come with the panel when you bought it.
I suspect that something happened when you might have hooked up the turn signal leads by matching wire colors rather than by plug and position function. I will take a look at the '89 turn signal schematic to investigate what might have happened.
The relayā¦ You can hear it, outside signals work fine but I have no power now to either L)R indicator lights ā¦ Odometer quit as well but I believe that Is a separate issueā¦
Garry,
I think you were talking about hearing the flasher unit clicking which it would have to do if the exterior turn signals are working. I remember a few weeks ago, you said you were going to try removing the two diodes for the left and right panel turn signal indicators - I hope you didnāt do that, as it would totally disable the panel turn signal indicators.
'89 XJS Turn Signals.pdf (200.0 KB)
Garry,
Sorry about that - It was Scott Barnes who said that.
I hit the hazard switch and trans. fail lights up as per your choiceā¦ Thatās working as it shouldā¦ When I remove the cluster pack I use a test light to test each pinā¦ Each time I use the turn indicator switch, I can hear the flasher unitā¦ Outside lights are working fine but when I test the pins I get nothingā¦ All was working fine beforeā¦ All I did was use my little tool to move each wire to the new locationā¦ Still scratching my headā¦ Victor
Garry,
I am not sure what pin
locations you are testing - on the panel side or the plug side?
I verified my crossover charts again this AM, and all check valid. A is the large plug, and B is the small plug for both the old and new panels.
I have attached the source documents for both panels. Please read the notes in the box for the pre HE / HE source document.
FaceLift Panel.pdf (475.0 KB)
Pre HE Panel.pdf (614.3 KB)
The connection at the plugā¦ G/W and R/B for the turn signalsā¦ Hook test light up to ground, hit the turn switch and as I touch test light up to copper connection, I should get a flashing signalā¦ I can hear the flasher opening and closing ā¦ Put my finger on it and I can feel it workingā¦ Outside bulbs work fineā¦ Hazard works fine and I connected it to Trans failā¦ This too works as per your instructionsā¦All fuses are intactā¦ Signals worked with old cluster but not the newā¦ Still scratching my headā¦ Am I missing something that ties together or is connected that shouldnāt be???
Since this thread is hear, hereās an illus I made as an enhancement to otherās pre-existing illustrations:
For pre-facelift:
~Paul K
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Is there by any remote chance, is there a difference between the ā92 and the 94ā instrument cluster wiringā¦ Just askingā¦ G
Paul,
Thank you for posting the '89 instrument cluster images. I had seen those images online, but could never manage to get a usable image (that I could read ) downloaded that I could work with. I have not had the time to peruse it closely, but you have done a marvelous job!
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