XJ XJ8 / XJR ( X308 ) 1997 - 2003

Cruise control dash indicators

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Old Aug 2, 2016 | 08:58 PM
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Default Cruise control dash indicators

The dash indicators are not working, neither the amber nor the green colors work. This is a relatively new problem, because they used to work fine. Recently the cruise control began to work intermittently, and at some point during this time, the indicators quit working. Sometimes the cruise would work, but at no time would the indicators light up, whether the cruise worked or not, once they quit working the first time. The intermittent cruise issue and the indicator issue may or may not be related...

Research here on the forum revealed that the intermittent cruise issue could be the brake light switch at the pedal, so I replaced the switch. It fixed the intermittent cruise problem, but the dash indicators still don't work. The indicator on the switch works fine and always did. What is likely to be the problem? Bulbs? Are they replaceable by removing the instrument cluster? Thanks again
 
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Old Aug 3, 2016 | 01:53 AM
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There's a light in the cluster!?
 
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Old Aug 3, 2016 | 08:30 AM
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I agree with Daim, I have never once seen a light in the cluster for the cruise control...
 
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Old Aug 3, 2016 | 03:43 PM
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aquifer, you had me going for a while on this, so I went and got the drivers handbook for my 98 XJR.....


There are only 3 green lights on the dash


1 is the sidelights on tell tale , the other 2 are the direction indicator tell tales.


Going by the handbook for my car, admittedly a UK spec car, the only tell tale indicator for the cruise control is the red led in the on/off master switch next to the sport mode switch.


I don't know of any difference to the US dashboard, so this may save some time chasing a fault that isn't there.


Hopefully if I am wrong, others will chime in.
 
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Old Aug 3, 2016 | 05:44 PM
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This is odd. I wasn't expecting these responses! My car definitely has the cruise control indicators in the instrument cluster, and they used to work fine. When the cruise switch was on but disengaged, the indicator was amber. When the cruise switch was on and engaged, the indicator turned green. The indicator itself is a little speedometer right below the fuel gauge, either just above or just below the blue high beam indicator.

Because of your responses, I looked in my owners manual, and it does NOT say anything about the cruise indicator. I'm not sure how it's possible, perhaps my instrument cluster has been replaced, but there is no question that the cruise indicator is there, and it used to work.

Let me ask this: generally speaking, are the dash indicators lit up by a replaceable bulb that is easy to get to, or are they an LED that is soldered to the circuit board? If I know that, I can decide if I want to pull the cluster out. I have had it out before, so not a big deal, but if I'm dealing with a soldered bulb, I might just leave it since it sounds like no other car has this. Very odd....

Thanks for your input tho! I appreciate it.
 

Last edited by aquifer; Aug 3, 2016 at 05:58 PM.
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Old Aug 3, 2016 | 05:47 PM
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Could your cluster have been replaced with a later models' cluster?

My MY 2000 VDP has no such indicator that I am aware of... I noticed that my vehicles cluster has the adaptive cruise light (however the vehicle isn't fitted with the adaptive cruise).
 
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Old Aug 3, 2016 | 06:11 PM
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Originally Posted by Bcrary3
Could your cluster have been replaced with a later models' cluster?

My MY 2000 VDP has no such indicator that I am aware of... I noticed that my vehicles cluster has the adaptive cruise light (however the vehicle isn't fitted with the adaptive cruise).
It has to be something like that, because I am 100% sure that the indicator is there and I'm 100% sure that it used to work. Just now I turned the key on, and all the indicators lit up briefly, but I didn't see the cruise indicator. Undaunted, I studied the layout of the indicators. I'm less sure where the indicator was, but it's either right above or right below the blue high beam indicator.

In any case, I may not dig any further at this time. Eventually I need to refinish the wood trim, so I may pull the instrument cluster out at that time and see what I can learn. The cruise works fine, so this issue isn't critical. I must have a cluster from another year....be nice to know so that I'm confident I'm not crazy!
 
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Old Aug 3, 2016 | 06:24 PM
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Before you start doing the woodwork, it's not very fun! I am in the process right now! To pull out the cluster is actually really simple, the wood trim piece pops right out, then it's just a handful of screws that hold it in plus a wire harness. I had mine out in 15 minutes. The bulbs are pretty easy to replace too (twist in type). Just did all of the outside bulbs, the only one that isn't working for me now is for the low beam indicator. Haha
 
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Old Aug 4, 2016 | 08:54 AM
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Before pulling anything, you might be able to take a bright enough flashlight and shine it onto the cluster to identify the layout of where the indicators are. That might help to identify if it is indeed a later cluster.
 
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Old Aug 4, 2016 | 06:44 PM
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I read this thread a week ago, and wondered too.

Yesterday, while outside, the bright sun allowed me to see each and every indicator relief.

As expected, I certainly don't have any indicator related to the CC, not even the adaptive CC one which some of you have on the latest models.
 
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Old Aug 4, 2016 | 08:31 PM
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It seems odd, but there's no question in my mind about this. Is it possible that I do have the original instrument cluster, and that 1998 was the only year they did it? That doesn't sound logical, but yet I used the cruise numerous times and the indicators were not only present but functioning perfectly! Until I saw these replies, I thought this was something potentially simple....
 
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Old Aug 4, 2016 | 08:52 PM
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Well, I also have voices in my head sometimes .

I have an original, early 1998 cluster in Miles in storage, and a 1998 replacement cluster in KM/hr mounted in the car (which I checked yesterday).

Just unpacked my alloy thermostat tower, and bumped in the stored one.
It does not have indication for CC as well.

Guess you mixed up with an other car?
Good thing is that all is fine with your car then ...
 
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Old Aug 4, 2016 | 09:03 PM
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Darnedest thing ever! It may be down the road a ways, but I will resurrect this thread if I can ever get it working, and I'll post pictures. It's just that I had and continue to have absolutely no doubts about this. I drove to Phoenix and back in May (2,000 miles) and used the cruise most of the time. It worked fine and the indicators did too!

I really don't think I'm crazy but perhaps I should have that assumption verified....
 
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Old Aug 4, 2016 | 10:17 PM
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what were the indicators? yellow/green cruise logos, text, etc? I know the 98 clusters have the tach with the smaller increments (which i really like the look of) so maybe they have cruise indicators as well. Does the 98 x308 owner's manual have any info on them?

Also, what did each color mean? Cruise system on, and cruise engaged?
 
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Old Aug 5, 2016 | 04:15 AM
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Originally Posted by aquifer
It seems odd, but there's no question in my mind about this. Is it possible that I do have the original instrument cluster, and that 1998 was the only year they did it? That doesn't sound logical, but yet I used the cruise numerous times and the indicators were not only present but functioning perfectly! Until I saw these replies, I thought this was something potentially simple....
My 97 built 98 model does not have a CC light in the cluster. Afaik only the 2002/2003 models had a light but that didn't even work or something like that...
 
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Old Aug 5, 2016 | 04:17 AM
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Originally Posted by aquifer
Darnedest thing ever! It may be down the road a ways, but I will resurrect this thread if I can ever get it working, and I'll post pictures. It's just that I had and continue to have absolutely no doubts about this. I drove to Phoenix and back in May (2,000 miles) and used the cruise most of the time. It worked fine and the indicators did too!

I really don't think I'm crazy but perhaps I should have that assumption verified....
Could it be you mean your sidelights light doesn't work? A little green light with two halfcircles... Could be that... Mine doesn't work but it doesn't bother me...
 
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Old Aug 5, 2016 | 09:46 PM
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The half circle light icon indicating the lights are on works fine. The cruise icons were: no icon if the cruise switch was off. When switched on, the red led in the switch itself illuminated and the dash icon appeared as an amber speedometer. Once the cruise was set, the dash icon tuned green.
 
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