Question about 1999 Jaguar XK8

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After a long session of programming my new head unit, the convertible top had trouble closing, and the rear windows remain down. Could a weak battery cause this?

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  • Jaguar Master
  • 959 Answers

Yes
Charge the battery and attempt to close everything up again...

Posted on Sep 28, 2010

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I have a 2007 mustang convertible top that will not go down. with key on windows go to park down position but no hydraulic pump sound checking fuses to ensure good power. where should i begin?


Principles of Operation
Convertible top operation is controlled by the smart junction box (SJB). When the convertible top raise/lower switch is operated, the SJB commands the front and rear windows to the full down position. Window operation is disabled while the convertible top raise/lower switch is being operated. When the SJB receives a full down input for both rear windows, it commands the appropriate relay closed to raise or lower the convertible top. If the SJB does not receive a full down input signal for both rear windows, the convertible top operation is disabled.

The convertible top hydraulic system uses a 12 volt reversible pump and motor assembly. When active, the pump uses hydraulic pressure to extend the hydraulic lift cylinders to raise the convertible top, or retract the hydraulic lift cylinders to lower the convertible top. The convertible top motor/pump assembly is equipped with a thermal circuit breaker. The circuit breaker typically resets after 5 minutes depending on the ambient temperature. The thermal circuit breaker cannot be repaired and must be installed as a unit with the motor/pump assembly. In the event of a hydraulic system failure, the convertible top cannot be operated manually.

Inspection and Verification
  1. Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical or electrical damage.


Visual Inspection Chart Mechanical Electrical
  • Convertible top brackets and frame
  • Convertible top latches
  • Convertible top pump and motor assembly
  • Hydraulic lift cylinders
  • Hydraulic lines
  • Bussed electrical center (BEC) fuse(s):
    • 13 (40A)
    • 51 (10A)
  • Circuitry
  • Convertible top pump and motor assembly
  • Convertible top ajar switch
  • Convertible top switch
  • Connector(s)
  • Convertible top raise relay
  • Convertible top lower relay
  • LH or RH rear power window motor
  • Smart junction box (SJB)
  • BEC

  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  1. If the cause is not visually evident, connect the scan tool to the data link connector (DLC) and select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle:
    • check that the program card is correctly installed.
    • check the connections to the vehicle.
    • check the ignition switch position.
  1. If the scan tool still does not communicate with the vehicle, refer to the scan tool operating manual.
  1. Carry out the scan tool data link test. If the scan tool responds with:
    • CAN or ISO circuit fault; all electronic control units no response/not equipped, refer to Section 418-00 .
    • No response/not equipped for SJB; refer to Section 419-10 .
    • System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, and carry out self-test diagnostics for the SJB.
  1. If the DTCs retrieved are related to the concern, go to the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index.
  1. If no DTCs related to the concern are retrieved, GO to Symptom Chart .
  2. Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1141 Convertible Top Full Down Position Switch Circuit Failure SJB Go To Pinpoint Test E . B1142 Convertible Top Full Up Position Switch Circuit Failure SJB Go To Pinpoint Test E . B1402 Driver Power Window Down Switch Circuit Failure SJB Go To Pinpoint Test A . B2068 Convertible Top Up Output Circuit Failure SJB Go To Pinpoint Test A . B2069 Convertible Top Down Output Circuit Failure SJB Go To Pinpoint Test A . B2481 Convertible Top Up/Down Switch Fault SJB Go To Pinpoint Test A . B2578 Passenger Power Window Down Switch Circuit Failure SJB Go To Pinpoint Test A . All Other DTCs - SJB Refer to Section 419-10 .
  3. Your best bet ,take it to a qualified repair shop !

Nov 05, 2017 | Cars & Trucks

1 Answer

Well my battery of my mustang wint down and i had to chage the battery and my drivers window when it goes up it bouces bacj down to a 1/5 down and i want to know how to restore it.


NOTICE: Make sure no obstructions are present in the window system when carrying out this procedure.
NOTE: A battery disconnect does not require this procedure to be carried out unless the battery was disconnected while the window was operating.
NOTE: Excessive bounce-back (bounce-back that occurs with no obstructions present) may indicate a non-initialized window motor.
NOTE: Carry-out the de-initialization of the motor before initializing the motor.
NOTE: The motor will only operate in the 9-16 volt range. If the voltage drops below 9 volts, the window will not function correctly or may stop moving. If the voltage drops below 9 volts while the motor is operating, the motor will become de-initialized and will need to be initialized.
NOTE: The front window motors must be initialized whenever: a new window regulator and motor is installed, a new window glass is installed, a glass top run removal and installation or when carrying out any operation in which grease or lubricants are applied to the window system. A new front window motor is in a proportional up/down mode until initialized.
NOTE: The convertible rear window motors do NOT need to be initialized as they do not have one-touch up or one-touch down functions.
NOTE: All front window components (window glass, window regulator, window motor and glass top run) must be installed/tightened and adjusted to specification before carrying out this procedure.
NOTE: If this procedure is only partially completed, the front window motor remains non-initialized and only the proportional up/down functions operate. A non-initialized window motor may allow one-touch down operation, but does NOT allow one-touch up operation.

De-initialization then re-initialization

The motor can be de-initialized in 2 ways:

Disconnect the battery cable from the battery while the window is operating.

Remove the window motor fuse while the window is operating.

After the motor has been de-initialized, the initialization procedure must be carried out.

Make sure there are no obstructions present in the window system when carrying out this procedure. The door MUST be closed during this procedure (for convertibles, the top and quarter glass must be in the closed and up position), in order for the door window motor to initialize.

The windows must be in the full open position for this procedure to operate correctly.

Press and hold the window control switch in the UP position at the second detent until the window glass stalls into the glass top run for at least 2 seconds.

Once the top run is reached, hold the window control switch in the DOWN position at the second detent until the window glass stalls at the bottom of its travel for at least 2 seconds.

Cycle the window glass an additional 5 times to set the window soft stop for the down position.

Test for correct window operation by carrying one-touch up feature.

Good luck, if for any reason you can't give four thumbs up, please ask for more information. Thanks!

Apr 11, 2011 | 2005 Ford Mustang

1 Answer

1995 Jaguar convertable XJS quarter light windows wont go up


The rear windows are controlled by a timer in the top's ECU. If
the rear windows stop fully closing before your top is closed, the
problem MAY be with top's hydraulic system.

Check your top's hydraulic reserve tank for low fluid level. Lack
of fluid will greatly delay the top's closing sequence, leaving
those rear windows partially open.
Your top's hydraulic pump system is located beneath the right side
of the cubby/storage box behind the front seats. Raise the cover
and you'll see a removable trim panel on the right side. The pump
is behind that access panel.

You can use power steering fluid to top off the tank, but don't
fill it above level indicator line. You may have to add more fluid
after you cycle the top up and down to get the air bubbles out of
the lines.
It could also be a relay. On a 95 the relays that are in the trunk above the battery.
Perhaps, just switching the relays might prove which one is failing..

Mar 24, 2010 | 1995 Jaguar XJ-R

3 Answers

2001 porsche 911 convertible top will not close and the rear windows will not close. I followed the Porsche guide to the letter and I still can not close my top. When I engage the rocker switch the...


Hi I have the same problem on my 1999 Carrea, I had the windows at the rear stuck down and the roof latch keeps open and closing, I have not solved this yet it could be a relay but it all started when I was opening and closing on the keypad, if you get the roof up and cant get the rear windows to close get the roof closed to a locking position and where the hood lock pulls back at the roof lock station slide a thin s crew driver up the side of the lock hook they close then, also a tip, if you stick your little finger in the hole where the hood lock goes and press both the rear window buttons up they close when the roof is down. if anyone knows why my hood wont lock please let me know

Nov 01, 2009 | 2001 Porsche 911 Carrera

1 Answer

Need to reset the soft top on a maserati spyder


Manual roof procedure
The procedure in the manual is just for closing the top.
A) Turn key to OFF for several seconds to bleed off hyd pressure.
B) Turn key to MAR (full electrical, but before start)
C) Remove cap on bulkhead behind the right-hand seat and use flat head screw driver to unfasten the hyd unit valve in order to relieve the oil pressure in the circuit.
D) Remove the cap on the bulkhead behind the left-hand seat and using screwdriver or allen wrench press until the top covering (panel behind roll bars that covers the convertible top well) until the panel's locks are released - you may have to tap the wrench to release the locks.
E) Lift the top covering manually and keep it open while extracting the top from its well.
F) Remove top from well until the front part is near the windshield frame.
G) Lift the rear part of top (rear window) upwards and lower the top covering until the hooks are resting on their respective locks.
H) While still keeping rear part of convertible top lifted upward press Button 1 to attach the top covering locks.
Button 1 is the forward one
Button 2 is the rear one.
I) Make sure locks are fastened. if not - try pushbutton 1 again. If necessary repeat D and H
J) Rest rear part of convertible top on top of covering.
K) At front of convertible top, open (deploy) the top's hooks by using allen wrench to turn the pin mechanism. (located in center of front headliner)
L) Press top unto windshield frame and use wrench to lock the hooks.
M) Press the rear of convertible top, so hooks on rear top insert into respective slots and press Button 2 to secure.
N) Keep Button 2 pressed until hooks properly fasten.

If the top is still tightly latched at the front, you can just start at step "G":
While holding the back of the top in the air, and the "top cover" resting down on its "hooks", press button 1 until it seats well.
Then lower the back of the top down to mate its "hooks" and press it down while holding button 2 until the top seats well.

Sep 10, 2009 | 2002 Maserati Spyder

1 Answer

Convertible top and rear windows will not close


do you see any visible reddish in color in the vehicle or on the floor ?

Aug 27, 2009 | 1997 Jaguar XK8

1 Answer

Top will not close clk 430 mercedes benz


did you recently have a dead battery? Either way try to resynchronize your windows (i'm not sure if you meant front window or rear quarter window). If you hold the window switch in the up position(car running and door closed) untill window reaches the top and continue to hold for 10 seconds the window will reprogram itself. try both front windows. This system is complicated and is best diagnosed via s.d.s. diagnostic machine. I will give you a couple of other possible easy remedies. If your vehicle is equiped with a ski window in the rear trunk panal the door must be shut, also your cargo cover must be shut and plastic lid secured. There are numerous micro switches that input to your soft top control unit-any one could cause the top to be inop. Check to make sure the switch on the cargo cover( retractable cover in trunk) is secured to it's housing, they do periodically fall off. Also if your roll bar ( rear head rests ) has been mechanically deployed You must hold the switch in the up position untill the rams lock back into the roll bar-does the roll bar operate? Always operate top with vehicle running because they are very voltage dependent. Your owners manual will explain how to manually raise top and some simple operation and repair remedies. If you are knowledgable about automotive electrical systems you can disconnect both leads from the battery and touch them together to drain the capacitors and it may reset the module( do not attempt if you are not knowledgable with automotive electricity because there are many things that can go wrong. hopefully I have been helpful.

Jul 20, 2009 | 2000 Mercedes-Benz CLK

1 Answer

My driver side window does not auto roll up anymore. How do I fix it?


Window may not be initialized. Follow this proceedure

Window Motor Initialization adobe.gif Printable View (96 KB) NOTICE: Make sure no obstructions are present in the window system when carrying out this procedure.
NOTE: A battery disconnect does not require this procedure to be carried out unless the battery was disconnected while the window was operating.
NOTE: Excessive bounce-back (bounce-back that occurs with no obstructions present) may indicate a non-initialized window motor.
NOTE: Carry-out the de-initialization of the motor before initializing the motor.
NOTE: The motor will only operate in the 9-16 volt range. If the voltage drops below 9 volts, the window will not function correctly or may stop moving. If the voltage drops below 9 volts while the motor is operating, the motor will become de-initialized and will need to be initialized.
NOTE: The front window motors must be initialized whenever: a new window regulator and motor is installed, a new window glass is installed, a glass top run removal and installation or when carrying out any operation in which grease or lubricants are applied to the window system. A new front window motor is in a proportional up/down mode until initialized.
NOTE: The convertible rear window motors do NOT need to be initialized as they do not have one-touch up or one-touch down functions.
NOTE: All front window components (window glass, window regulator, window motor and glass top run) must be installed/tightened and adjusted to specification before carrying out this procedure.
NOTE: If this procedure is only partially completed, the front window motor remains non-initialized and only the proportional up/down functions operate. A non-initialized window motor may allow one-touch down operation, but does NOT allow one-touch up operation.
De-initialization
  1. The motor can be de-initialized in 2 ways:
    • Disconnect the battery cable from the battery while the window is operating.
    • Remove the window motor fuse while the window is operating.
  1. After the motor has been de-initialized, the initialization procedure must be carried out.
Initialization
NOTICE: Make sure there are no obstructions present in the window system when carrying out this procedure.
NOTE: The door MUST be closed during this procedure (for convertibles, the top and quarter glass must be in the closed and up position), in order for the door window motor to initialize.
NOTE: The windows must be in the full open position for this procedure to operate correctly.
  1. Press and hold the window control switch in the UP position at the second detent until the window glass stalls into the glass top run for at least 2 seconds.
  1. Once the top run is reached, hold the window control switch in the DOWN position at the second detent until the window glass stalls at the bottom of its travel for at least 2 seconds.
  1. Cycle the window glass an additional 5 times to set the window soft stop for the down position.
  1. Test for correct window operation by carrying one-touch up feature.

Mar 06, 2009 | 2006 Ford Mustang

1 Answer

Convertible top acting up


There are a number of known issues affecting the 9-3 convertible top. TSB 811-1989 describes a problem and fix for the cables to the lock for the top cover.
TSB 811-2101 refers to the jamming of the top cover due to a deformed hinge and provides the fix for this.
TSB 811-2160 deals with instances where the first bow hits the top cover while the top is opening, due to a deformed shear pin, and provides that repair procedure.
Where the soft top cannot be operated or it stops in mid-operation, the SID displays the message CHECK
SOFT TOP COVER, and the following diagnostic trouble codes are be generated: B2025, B2026, B2030, B2031, refer to TSB 811-2236.
Any of these four problems can result in the top cover failing to open and close properly, and can interrupt the smooth operation of the opening and closing of the top.
Finally, the top may somehow have otherwise become out of sync and this does indeed require a Tech 2 diagnostic scan and programming tool to correct. All Saab dealerships have this tool, and an increasing number of independent shops that do appreciable work on Saabs are so equipped now.




Nov 26, 2008 | 2002 Saab 9-5

2 Answers

2004 turbo convertible beetle


Try using the all windows up and down button (Drivers side on door), evidently after you change your battery this is the reset proceedure.

Jun 08, 2008 | 2003 Volkswagen New Beetle Convertible

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