XJ XJ8 / XJR ( X308 ) 1997 - 2003

x308 cables and sunroof motor

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Old Jun 22, 2013 | 03:38 AM
  #1  
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Default x308 cables and sunroof motor

1999 x308

im reinstalling the sunroof motor, or atleast attempting too.

I cant seem to get the outer 4 tubes of the the cables to sit in
the grooves on the motor, let alone to have it mesh with the
motor spindle. I thought it would just take a few seconds..
that's was hours ago.

SO the main problem is getting these cables to sit in the grooves....any advice?

The owners manual says'' to reinsall give a 1/4 turn to reengage
gears and that the ''boss will be flush with the casing''.. but
the ''boss'' is already flush with the casing no matter how I turn
the boss. Does this imply that the gears that engage the cables
are retracted or something initially upon installation?

As is I cant see how a 1/4 turn changes anything physically on the
motor, the gears turn directly proportional to the turning of the
boss

I looked at the sunroofmotor, it seems its original just like one
on listed on ebay.. it has a ''TTT'' company stamp on it.

Any advice is most appreciated.

best regards
Peter
 
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Old Jun 26, 2013 | 03:30 AM
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Youre all way to loud in your responses.
ANyway heres my results and analysis, prehaps to help others in the future.
Don't trust the publications is lesson one.

THe manual say to turn the sunroof motor shaft anticlockwise once
the timing is set. However the Technical services bulletin says in
a note that the turn should be "clock wise", yet later on in the
same publication it say to turn anticlockwise .. all for the
subroof on the closed position.
I chose to play it say on the balance of proabilities and went
anti clockwise, 1/4 turn.. Now after reinstalling the sunroof and
all, the roof does not open, I have to do it again. Maybe it was
clockwise... don't know.
In one of those publications it says "1/4 turn on the shaft to
reengage the motor and have the drive gear flush with the housing"
the other publication omits this part... what it refers to im not
sure as the shaft in the motor is always flush. After a 1/4
turn there is no change in the shaft externally on my motor. Maybe
its part of the reason my efforts were not successful, I do not
know the answer just yet.
In my case the motor works as one can hear it but it seems the
gear is not engaging on the cables, so no movement of the roof,
yet it all sat nicely around the cables... something internal in
the motor, perhaps the 1/4 turn should have been clockwise as in
the TS and not the workshop manual (anticlockwise).

In regards to the sunroof motor not meshing with the cables, the cables will over time warp slightly so to get them back in apply some silicon grease on the cable/gear area and have one person pull back or forward with a pair of pliers abnd hold it there as required on the metal cables (the other 2 are plastic they can be moved by light pressure) its the metal ones which offend, then the other person should be able to fit the motor around the cables properly.
The sunroof motor for me seems not to be engaging the cables.. I think ths mot r is indeed 2 pieces , a motor the a gearbox.. so the motor turn but the gearbox is disengaged... I will do it all again with a 1/4 turn clockwise this time not anticlockwise. (one publication is in error seems workshopmanual which said anticlockwaise)
BUT I do not understand the "shaft will then be flush with gearbox housing " comment (which is entirely omitted in one of the publications). It never mentioned the shaft popping out or something when disengaging....
We'll see what happens.
Peter
 
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Old Jun 26, 2013 | 05:35 AM
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Me again.... just to add the 1/4 turn made sense to me in an anticlockwise direction when roof was closed as the clockwise motion resulted in "closing the roof" ie it pulled the roof closd. so an anticlockwise turn is the only alternative.. so went with it. When giving 1/4 anticlockwise turn, it did not result in any change in the shaft being flush with the housing ( as one of the publications mentioned)... I did hear aclick on the 1/4 turn and I thought that was it , the gears were engaged.... How do we know the gears are re-engaged? Peter
 
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Old Jun 26, 2013 | 07:32 AM
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Originally Posted by osyris
... How do we know the gears are re-engaged? Peter
When it works?

I've no sunroof, can't abide them for this reason, a real pita, added weight and complication, anyway, have you got round to anticlockwise yet? My guess would be to close/lock it, then the logic would be to reverse this electronically controlled, I guess it's where the cars control gets the position from? Up against a stop?
 
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Old Jun 27, 2013 | 03:55 AM
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sean
yes your logic is correct imo but the sunroof when closed is positioned in the middle of its slide because the roof continues on its slide inorder to tilt up. Inother words the manual says to position the slide track 8mm from an edge in the slide track ie its not at an end in anyway. Reason is that the roof continues in its tracks and tilts up. Further the sunroof after closing will have a small jump up again to ensure its closed.
So there is no "closed" position on the track perse, its al in the SCRM sunroof control module, which is the ecu of the sunroof.. only it knows!! .. know one else!
I think the anticlockwise rotation is correct, but the munual says 1/4 turn.. I gave t 1/4 turn and it clicked at the end of it.. I think it should be just less than 1/4 urn BEFORE it clicks... So to test this I actualy do not have to retime anything or disturb anything as the tracks/cables have not moved in my case. I just need to open the sunroof with the screwdriver manually in the motor shaft then closed it and when closed give it less than 1/4 turn, then im hoping it will reengage the shaft. (actually theoretically I could just do a "less than "1/4 clockwise turn in my case as I think the manual direction is now opening the sunroof)...will see tomorrow.
best regards
Peter
 
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Old Jun 28, 2013 | 03:09 AM
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ok
After installing the motor and SCRM and setting it correctly as I said I couldn't get the 1/4 turn on the motor shaft to engage the cables. The motor would turn when the sunroof button was activated but the cables wouldn't move. In such a situation the setting does not alter between the SCRM and the motor as they are basically physically connected by the cable. SO Even is the roof doesn't open as in this case due to the gearbox shaft in the motor not engaging so I had to do is turn the motor via the shaft with a big screwdriver blade and open the roof completely and then give a less than 1/4 turn in the opposite direction until I heard a click. At that point the gearbox was engaged with the motor and the roof closed and opened perfectly.
However I did not see any of the " shaft will be flush with he housing" as described in ONE of the manuals so best to ignore that portion.
Hope this all helps someone. Send me an email otherwise.
best
Peter
 
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Old Jun 28, 2013 | 06:01 AM
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Kudos to you Pete for perservering with this ;o)
Good to see you got it sorted.
I spent about 20 mins going over mine, cleaning, lubricating and making sure it all works as it should.
I use food grade clear silicon grease for critical hinging points and silicon spray placed in a jar and use a long artists brush to pain various points and rails.
Also us ea long thin hose attached to vac cleaner to make sure the drain tubes are clear.
Mine is about due to have the seal replaced.
 
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Old Aug 21, 2025 | 03:55 AM
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oh geez, i bought a replacement motor for mine but after reading this ordeal i think i'm gonna leave it alone. at least its closed. god knows i don't need anymore lessons in patience with this thing. I'm happy its running albeit with a pesky limp mode engagement until engine reaches operating temps. that too i opted to leave alone. already did the fluid change and that was more than enough for me in hot and stick east Tennessee. thank god the AC works!!
 
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Old Aug 21, 2025 | 07:19 AM
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These ladies are indeed complicated by design. Multiple systems are
intertwined and inter-dependent and set with warning signals which can
frustrate even the best mechanics. Knowledge and patience is the key.
This forum is a veritable fountain of wealth concerning many situations
that may occur. You may have to search a bit, but the answers are almost
always there.
 
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Old Aug 21, 2025 | 01:26 PM
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Maybe replace the temp sensor in the cross-over pipe and clean the MAF and the limp mode will go away: what codes are showing.
 
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Old Aug 21, 2025 | 02:39 PM
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I don't really think any codes are associated with the sunroof are going to
be shown on most of the diagnostic equipment I've noticed that forum members
use. If they do have the right equipment the code and procedure would be:
Code: B1B56-87
Definition: Sunroof Module - Missing message
Cause: Roof opening panel control module power or ground circuit open circuit, high resistance
Roof opening panel LIN bus circuit short circuit to ground, short circuit to power, open circuit, high resistance
Roof opening panel control module internal failure
 
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Old Aug 22, 2025 | 11:16 AM
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Come on Randy: he said, "I'm happy its running albeit with a pesky limp mode engagement until engine reaches operating temps. that too i opted to leave alone. already did the fluid change and that was more than enough for me in hot and stick east Tennessee. thank god the AC works!!"
 
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Old Aug 22, 2025 | 04:32 PM
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Originally Posted by Jhartz
Come on Randy: he said, "I'm happy its running albeit with a pesky limp mode engagement until engine reaches operating temps. that too i opted to leave alone. already did the fluid change and that was more than enough for me in hot and stick east Tennessee. thank god the AC works!!"
I certainly understand. Sometimes it is difficult for me to recognize what post
is being responded to, when there is no identification of who it is addressed to
or "quote" which could have identified that. .
 
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