With the battery connected, without the key in the ignition, the blue main beam, the green headlight and both left and right flasher indicators are all flashing slowly and weakly together - more like a regular flicker.

Put the key in the ignition and turn it, and all warning lights come on, but the engine won't turn on the key, and can' t shift out of Park, so I am immobile.

I've no idea where to start looking, though I am wondering whether this might be an earth fault somehow associated with the hazard lights. I have tried a hard reset (twice) with no effect, and unfortunately don't have a code reader. Anyone able to throw any ideas to me? I have just installed the nav to 3-gauge unit, but I don't think it has got anything to do with that.

Thanks!

Update. Battery fully charged. Hazard lights do work - you can hear them, and they flash properly on the car. However, the dashboard indicator lights don't flash with them.

 

......nobody?....

 

If something breaks after a job it's probably related to the job.

I'd start by retracing my steps. Disconnect the new minor instrument cluster. Check for disturbed wiring/connectors. Essentially, try to get back to where you were at the start and go from there.

Report back once you're at that point.


Mike

P.S. You really should get a code reader for future use, although I'm not sure how much it would help here.

 

I think it's almost certain to do with that.

Graham

 

Hi Mike,

Thanks for your thoughts. I have done both of these things. The code reader is ordered and I will be collecting it from the shop in a couple of hours time. As far as the association with what I have done, I am completely with you on this, but I have disconnected eveything and it has made no difference. It has been suggested that I look at the steering wheel connections, because it was moved to extremes so that I could get to the major instrument cluster, but I am reluctant to do that unless there is good reason, because I am worried about making things (even) worse. Very, very puzzling.

 

I agree that is is almost certinly linked to my actions, as it would be a coincidence too far, otherwise! What I mean is that I don't think it is the 3-gauge harness itself that is at fault, but something else that happened at the time. The gauges did work properly to start with, and I am sure were correctly wired. And, with the cluster disconnected, the problem still persists.

 

Update! Possible cause found! Thanks so far, guys. Following your advice to check everything carefully I have found a disconnected connector - so anyone know where it should be connected? It is a white 4-wire connector, underneath the main instrument cluster, and it emerges like a short spur from other wires. It could go to the steering wheel, so I am going to look for a mirror.

No, not that. The connector went to the pad in front of the knees. All seems properly connected and secure.

Do you think it could be the main instrument panel computer? When I turn the key 10 beeps sound.

 

I am having a bit of a deparate nightmare with my electrics - so please put in your ideas if you can:

https://www.jaguarforums.com/forum/x...7/#post1697871

Meanwhile, as I try to sort this, I feel that the computer is suspect. Apart from the headlight, main beam and flashers lighting up all the time (even without the key in), with the ignition on I do see a full christmas tree of lights. Would a computer failure, if it has failed, prevent me from being able to crank the car, because the engine doesn't turn over? Battery is fully charged and in good condition, Also, what should happen if I remove the main cluster altogether - is this safe to do, and should I be able to crank the engine with it removed?

 

You'll find your next post has vehicle details in your forum Signature. I've edited it.

Presumably it was the white connector to the aspirator fitted in the bolster?



The beeps could be the Instrument Pack check. Are the locking latches secure on both connectors to the IP?

Graham

 

Thanks Graham. The car is different from when I first joined, being new a 2005 (facelift) XKR convertible, purchased recently with 74k on the clock.

Correct! It was the connector to the bolster, as you said.

The instrument pack is the pcb connected behind
the main instrument yes? Yes, the yellow annd black connectors are both secure. Also, none of the pins are bent and all of the wires are properly seated within the connectors

 

The Instrument Pack is the whole assembly. A wonderful design where you have to take it out to change a bulb!



Very easy to bend a pin on either of the harness connectors and they will still lock in place with a bent pin. Make sure the small black harness connector (circled left) is connected.

Graham

 

Thanks, Graham. Still no joy at all.

I have rechecked the pins and connectors - all are straight and true.

I also plugged in a (new) 3-gauge unit. Both the oil and the battery lights come on and stay on when electrics are connected. I can't start the car at all.

I just don't know where to go with this.

 

Diddion,
I've pulled the text from the new thread you've started to keep everything together.


The main cluster is 'comms central' amongst other things. You will not get a start with it removed.

Did you disconnect the battery before doing any of this work?

 

I did.....but I wonder whether, during on of the (many!) disconnects and reconnects I may have slipped up, somewhere.

I also wonder whether there is an earth fault somewhere. Certainly odd that the dashboard lights, as noted in the first post, are on -albeit dimly- and flickering wjhen the battery is connected with all else off.

I am relying in the combined might of forum members, here. Thanks.

 

I'm at work so can't get to cross-check part numbers, but if you can blag the IP off your deceased one it may come in useful...

 

Quick answer to removed major IC? Engine will not crank because vital parts of PATS will disappear and thus inhibit both ignition, crank & run.

Even with your link, have no idea what MY etc (please put relevant details in sig) so, unlike you, I can't consult wiring diagrams. However, as this aberrant fault seems to have appeared after you were in behind there playing (SatNav to 3 gauge), my bet is that it is related. May be as simple as a dislodged connector.

Best wishes,

Ken

 

Thanks, Michael.The IP? Is that the info on the sticker? The sticker has the following info.
Visteon
Then underneath on the lhs:
033833
Op : A1
22/02/05

Above the bar code is. 3w83 - 10849 DG. The DG is in a large font. Although I am not entirely certain that it is the culprit, I think it, and the engine management module, are the main suspects. I have located a second hand unit which is model 4300 KC, and there is another with a DC written in large font- so it would be handy to know if either is likely to be interchangeabe, especially without programming.

Got my code reader. p1638. I think this covers a multitude of generally expensive sins, so where to start?

According to Jaguar main dealer here in the UK the current instrument number is C2N3093, and no longer available from them.

Summary so far
This is a full list of issues:
Battery connected, ignition off: main beam, headlight dashboard indicators, and both indicator arrows all on, weakly, and flickering together regularly. Oil and temperature warning lights on.
Ignition on: all dashboard warning lights on. Haven't done a full test, but electrical items seem to work: hood, lights, wipers.
Trying to start with the key. Engine does not turn; cannot move out of Park.
There is a further issue which I have just remembered, and which may be really significant. At the beginning of all this, when I could start the engine, is appeared to limit at about 4200 rpm - I wonder if it was going into restricted mode, which could have then been followed by the other stuff already noted.

So here are the questions
Obviously - what is going on?
Should the car be able to start, when disconnected from the cluster (yellow and black connectors disconnected). I have read elsewhere on this forum that the car can start in that way. If this is the case then the fault points away from the cluster (because the engine won't turn with the cluster disconnected).
I feel that non cranking is a significant point, which may not be explained by an instrument cluster fault.
Do you think there might be a problem at the steering switches?
Is it worth trying to source a replacement cluster anyway? If so, I'll be looking for advice on which kind to get (see details above). Would. A pre 2002 xkr cluster work on my 2005 xkr, and is there any significance of the big bold letters on the label (DG in my case)

Thank you, everyone, for your help, which is hugely appreciated. It is an increasingly confusing picture right now, with no light visible at the end of the tunnel.

 

JEPC shows C2N3091 (same as the C2N3093 other than the MPH/KPH interchanged), and LJE4300DB for the 2001. I would be wary about interchanging one if the p/n is different. Hopefully someone can confirm/refute that.

AFAIK, a replacement pack has to be dealer programmed to the car, and you will keep whatever the donor odometer shows.

P1638 could be a connection fault (see below) so double-check the black connector on the instrument pack. Long shot as you're getting lamps flickering with the ignition off, but check F4 (5A) in the driver's side fusebox as it feeds non-switched power to the cluster.

Do all the warning lamps remain on with the ignition or go out as normal?

You could source a replacement cluster, but it will cost you dearly. The only one I've found is in West Palm Beach. It would be better if you could get yours tested/repaired as there would be no reprogramming and you would retain your odometer reading.

NB there is a speed limiter that limits maximum engine revs when not in drive.

 

Thanks, Mike. I didn't know about the engine limitin when stationary - clever!

I did check all fuses, and they are ok, but I will double check, as you suggest.

With ignition off, I get the headlight and indicator lights, as noted. With ignition on, all warning lights come on, and stay on.

Is it your instinct that the main instrument cluster is the culprit? I am also exercised by the fact that I can't crank the engine, and I wonder whether an instrument cluster fault could cause that.....if not, I'll need to look elsewhere.

 

I now believe that it is the instrument cluster which is at fault. I am sending it to a cluster repair specialist here in the UK in the hope that they can rectify the fault - if not, then there will be a real problem as I believe it is difficult to source correct second-hand units which will work fully - this may be something I'll be coming back here for further advice!

I'll send a further update when I get it back - should be within about a week.