Question about Land Rover Discovery

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2008 discovery. sun roof not operating. Fuse 20 ok. recalibrate does nothing. No noise when operating the open/close switch. Any suggestions ?

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If the fuse is OK as you say, it is most likely the switch, a broken electrical line or the drive motor. Try chasing the cable from the switch to the motor and check for 12+ volts at various points with the switch in the "on" position.

Posted on Apr 11, 2015

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Posted on Jan 02, 2017

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Sun roof won't close 2004 Ford Explorer


The roof opening panel is an electronically operated panel that can be opened or closed by the roof opening panel switch. Actuating the switch in either a forward or rearward motion supplies a ground to the roof opening panel motor. The vent and soft-stop functions are controlled by the roof opening panel motor. These positions are obtained when an internal motor cam opens the roof position switch, removing the ground from the switch. The roof opening panel has an express open feature activated when the switch is pressed momentarily. The roof opening panel is closed by continuous activation of the switch until the sunroof stops movement. This function is controlled by the roof opening panel motor.

Visual Inspection Chart Mechanical Electrical
  • Roof opening panel
  • Opening shield
  • Roof panel frame
  • Opening shield guide feet
  • Central junction box (CJB) fuses:
    • 2 (20A)
    • 29 (5A)
  • Battery junction box (BJB) fuse 1 (60A)
  • Accessory delay relay
  • Roof opening panel control switch
  • Circuitry
  • Roof opening panel motor

  • The roof opening panel does not open or close
  • Central junction box (CJB) fuse:
    • 2 (20A).
    • 29 (5A).
  • Battery junction box (BJB) fuse 1 (60A).
  • Circuitry.
  • Roof opening panel control switch.
  • Roof opening panel motor.
  • Go To Pinpoint Test E .

Do the power windows and power locks work ?

E6 CHECK VOLTAGE TO THE ROOF OPENING PANEL MOTOR - CIRCUITS 400 (LB/BK) AND 1173 (BN/OG)
  • Key in OFF position.
  • Disconnect: Roof Opening Panel Motor C920.
  • Key in ON position.
  • NOTE: Activate accessory delay relay for this check.
  • Measure the voltage between roof opening panel motor C920-4, circuit 400 (LB/BK), and ground; and between roof opening panel motor C920-7, circuit 1173 (BN/OG), and ground.
  • Are the voltages greater than 10 volts?
Yes
GO to E7 .

No
REPAIR circuit 400 (LB/BK) or circuit 1173 (BN/OG). TEST the system for normal operation. If you can't do electrical testing , there is a manual way to close it .
Roof Opening Panel Manual Operation
  1. Remove the overhead console. For additional information, refer to Overhead Console in this section.
  1. Insert a hex-head screwdriver in the center of the manual drive slot to depress the release pin. Rotate the screwdriver clockwise until the roof opening panel is closed.

Jan 13, 2017 | 2004 Ford Explorer

1 Answer

2000 Buick regal sunroof won't close any suggestions


Could be due to failure of the sun roof switch, the limit switch module, the sun roof actuator, the sunroof module or the 30A PWR WINDOWS PWR SUN ROOF CIRCUIT BREAKER in the I/P fuse block.

Sep 18, 2016 | 2000 Buick Regal

1 Answer

Sun roof not working on 2008 GMC Envoy, stuck half way open. Checked and replaced fuse but didn't solve problem. No noise at all when I push button. How do I check the sun roof motor if that's what I


My standard for most of these type of questions is that you should purchse a haynes or chiltons manuel for your vehicle. I will have instructions and diagrams as well as tips to help you do your job, I bought mine on ebay for 17.50.

Nov 30, 2014 | 2008 GMC Envoy

1 Answer

Honda CRV-2001 MODEL SUN ROOF WILL NOT OPEN OR CLOSE. Sun roof motor OK, but loud clicking noise evident when power button is operated. Sun Roof stuck in closed position.


caution if it opens you may not be able to close it again, this sounds like the track broke or something in the motor. lets hope its the motor as if its the track then the whole track needs to be replaced, there is no repairing a broken sunroof track.

Aug 17, 2011 | 2001 Honda CR-V

1 Answer

Chevrolet 2004 Tahoe Sun Roof Problem


I have built, repaired and installed sunroofs for 20 years. Its hard to tell what problem is, so many variations for motors with relays, cams, programed circuit boards. To get the roof closed you can drop motor usually 3 screws then pull glass forward as far as you can, then from inside of truck you will have to take a screw driver and finish sliding cable forward somehow. When sliding by hand watch on the inside to see what parts are moving so you can finish sliding forward. Hope this helps.

Mar 21, 2010 | 2004 Chevrolet Tahoe

1 Answer

Sun roof not operating


I have built oem sunroofs for 20 years and if it was jerking to close you may have something in the track interfearing with the closing, but more than likely there is something broke. There is alot of plastic parts. No over-ride on an oem roof. The only obstacle in a motor replacement is make sure your lifter arms (the parts that the glass attaches to) are in the closed positon. This is called timing. You can help the motor along with a light pull or push to take some strain of the motor.

Mar 18, 2010 | 2004 Buick Rendezvous

3 Answers

Volvo 2003 s60 sun roof do not open, fuse ok.


check your fuse in position 38 in the fuse box....this fuse is for the car's alarm system but also seems to work the sunroof, I have a problem with this fuse when its not blown the sunroof opens with no problems but when it blows the roof will not open I am not sure how they are tied in together but they are....so I would say that you have an electrical issue....do not replace the motor until you check this first

Jun 05, 2009 | 2003 Volvo S60

4 Answers

Sun roof will nt close cant find the rite fuse


check fuse F1.401, 30 amp in central junction box (in truck). Check your owner manual for fuse information.
Headliner must be removed to access motor.



Visual Inspection Chart Mechanical Electrical
  • Roof opening panel
  • Roof opening panel frame
  • Roof opening panel drain hoses
  • Roof opening panel lifter assemblies
  • Roof opening panel water trough
  • Roof opening panel air deflector assembly
  • Roof opening panel seal
  • Roof opening panel shield
  • Battery junction box (BJB) fuse
  • Circuitry
  • Accessory delay relay
  • Roof opening panel switch


  • The roof opening panel does not open or close
  • Roof opening panel adjustment.
  • Battery junction box (BJB) fuse.
  • Circuitry.
  • Roof opening panel switch.
  • Roof opening panel motor assembly.
  • Roof opening panel lifter assemblies.


  • The roof opening panel does not open or close — one direction only
  • Circuitry.
  • Roof opening panel switch.
  • Roof opening panel motor assembly.



Apr 10, 2009 | 2003 Lincoln Navigator

2 Answers

Sun roof does not work


Dear cz50001: there are only a few things that you, a weekend warrior can do to diagnose and/or fix the problem on your car.
Unfortunately the newer cars get, the more complex they get.
Unfortunately, your car is one which falls in the more complex category. Your car is designed with a "BODY CONTROL MODULE". This little gem gets input from nearly every electrical component in the car including the sunroof. In terms of what you can do to check it out: The fuse box inside the car has roughly 24 fuses positioned vertically 12x12. The fuse located at the lower left side of the box is a 10A "red in color" is for the sunroof. Remove it and look through it to see if it has been burned through the center. If it has, replace it and try the sun roof. If the fuse blows again, you have a short and it would be best left to a professional.
There is another set of circumstances which can occur that will render the sunroof inoperable. If the battery is disconnected or if the sunroof motor had been disconnected, the sunroof will stop operating. To reset the sunroof memory, with the key in the on position, push and hold the sunroof tilt switch in the forward (up) position until the sunroof is fully vented (tilted up) position. It should at that point operate normally. Should those two suggestions not solve your problem, it requires either a dealership with a specialized tool called CONSULT-11 to communicate with the BCM. There are some specialty shops such as mine equipped to deal with your car as well. However, most can not address this type of problem without this diagnostic tool. Good luck.

Apr 05, 2009 | 2005 Nissan Altima

1 Answer

Sun Roof Motor is not closing the Sun Roof


It sounds like it can be a problem with the switch. Try pulling the switch out of the dash. Are you any good with using a Digital Multi Meter?

Nov 12, 2008 | 1998 Acura Integra Type R

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