Scheme 1
| Item Number | Description |
|---|---|
| 1 | Closing panel |
| 2 | Clamp plate |
| 3 | Glass panel |
| 4 | Sunshade panel |
| 5 | Carriage |
| 6 | Motor and control module assembly |
| 7 | Frame |
OVERVIEW
The roof opening panel is electrically operated by a three-way switch located on the forward interior light assembly. The roof opening panel drive unit moves the roof opening panel to the tilt, open or closed positions. The unit is actuated by the integrated roof opening panel control electronics.
The roof opening panel frame is bolted to mounting points on the roof panel. The frame, constructed from pressed steel, supports all the roof opening panel components.
A rubber gaiter is fitted between the sides of the glass panel and drive assembly. The gaiter reduces wind noise with the roof opening panel in the tilt position and conceals the drive linkage.
The roof opening panel drive unit is accessible by removing the motor access panel (integral with the forward interior light assembly). The drive unit is mounted ahead of the roof segment between the roof liner and lower frame section of the roof opening panel. It comprises a motor with add-on reduction gear (worm drive), two Hall-effect integral position sensors and integrated control circuit.
The worm drive drives a gear in a cast housing attached to the end of the motor. The gear has a small pinion gear attached to the outer part of its spindle. The pinion engages with the spiral cables to form a rack and pinion drive. Rotation of the motor turns the pinion which in turn drives the cables in the required direction.
Two cables are attached to either side of the pinion. One end of each cable is attached to the guide. The opposite end is clamped in its position on the pinion by a riveted bracket. The cables run in metal tubes to the guides. As the roof opening panel is closed, the cables are pulled through the metal tubes. The displaced cable is guided into plastic tubes which protect the cable and prevent it snagging. The cables are made from rigid spring steel and therefore can push as well as pull the roof opening panel along the guides.
A sunshade is also located in the guides. When the roof opening panel is opened or tilted, the sunshade moves rearward. When the roof opening panel is opened, two brackets on the sunshade engage with the panel as it is retracted. The sunshade is then pulled back by the retracting panel. When the panel is closed, the sunshade remains retracted until pulled manually to its closed position.
Drain hoses are connected to the front and rear corners of the frame. The drain hoses are located inside the 'A' and 'D' pillars to allow water which has collected in the frame to escape. A one-way valve is fitted to the end of each drain hose to prevent the ingress of dirt and moisture.
CONTROL MODULE
The roof opening panel control module is integral with the drive motor, and is mounted behind the headlining at the front of the vehicle. The control module connects to the vehicle wiring via a 13 pin electrical connector. The software contained within the control module is configured to meet individual national regulations.
The control module communicates to the central junction box (CJB) via the local interconnect network (LIN) bus.
Scheme 2
| Item Number | Description |
|---|---|
| 1 | Battery |
| 2 | |
| 3 | |
| 4 | Roof opening panel switch |
| 5 | Roof opening panel motor and control module |
Note. A = Hardwired; O = LIN bus
Anti-Trap
The anti-trap feature is configured to meet the specific requirements of individual national regulations. The system operates by monitoring the torque output of the sliding/tilting roof opening panel drive. It operates when the roof opening panel is closing and the opening is greater than 4 mm. To ensure that the roof opening panel fully closes it is disabled for the last 4 mm of travel.
If activated, the anti-trap feature returns the roof opening panel to the point at which the close selection was initially made.
The control module disables the anti-trap feature when emergency closing (panic mode) is selected.
Sleep Modes
To reduce the current consumption of the vehicle, the roof opening panel control module switches to a power saving mode after receiving a message from the central junction box (CJB) via the local interconnect network (LIN) bus. In this condition manual operation of the roof opening panel will result in the loss of its absolute position. If this occurs, the roof opening panel will require re-initializing.
The power saving mode is exited on receipt of a message from the central junction box (CJB) via the local interconnect network (LIN) bus.
Shutdown
During the engine cranking process, the central junction box (CJB) requests the roof opening panel control module to inhibit roof opening panel operation via the local interconnect network (LIN) bus. Any requested movement is halted until the ignition is returned to ignition on (mode 6).
If the voltage supplied to the roof opening panel control module drops below 9.5 V, any one-touch operation currently in progress will be terminated and no new roof opening panel movement will be initiated.
Initialization
Initializing the roof opening panel allows the control module to learn the end positions of the motor's travel. Hall sensors in the motor provide pulses for motor spindle rotation. The control module counts the pulses and determines where the panel is by memorizing the stored pulses.
If the system is not initialized, the roof opening panel will only operate in the tilt up and slide close positions. To initialize the roof opening panel
- Using the switch, move the roof opening panel to the full tilt position and hold for 20 seconds.
- Release the switch.
- Using the switch, close the roof opening panel.
- Using the switch, slide the roof opening panel fully open, then fully closed.
Diagnostics
The roof opening panel control module has a built in test function to allow self-checking and self-diagnosis.
Exchange of data with the Land Rover approved diagnostic system takes place via the central junction box (CJB) and the local interconnect network (LIN) bus. It can be used to identify 3 possible faults.
- Mechanical stiffness (fault in the roof opening panel unit)
- Implausible input signals (control fault)
- Electronic fault.
PRINCIPLE OF OPERATION
For a detailed description of the roof opening panel system and operation, refer to the relevant Description and Operation section of the workshop manual. Refer to See Roof Opening Panel . .
INSPECTION AND VERIFICATION
| CAUTION | Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle. |
Note. Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage. VISUAL INSPECTION Mechanical Electrical Glass panel assembly Glass panel seal Frame assembly Sunblind Deflector Access panel Roof opening panel cables Drain tube(s) Fuses Battery Junction Box (BJB) Central Junction Box (CJB) Wiring harness Loose or corroded connector(s) Roof opening panel motor and control module Roof opening panel switch
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.
SYMPTOM CHART
| Symptom | Possible Causes | Action |
|---|---|---|
| Roof opening panel inoperative | Fuse(s) blown Circuit fault Switch fault Motor fault | Check the fuse(s). Check the roof opening panel circuits. Check the switch and motor function. Refer to the electrical guides. |
| Roof opening panel sticking | Debris in the channels/guides Cable(s) sticking/damaged Roof opening panel not correctly aligned Switch fault Motor fault | Check for general debris. Inspect, clean and lubricate the cable(s) and guides. Check the roof opening panel alignment. Refer to the relevant section of the workshop manual. Check the switch and motor function. Refer to the electrical guides. |
| Roof opening panel juddering | Debris in the channels/guides Cable(s) sticking/damaged Roof opening panel not correctly aligned Motor fault | Check for general debris. Inspect, clean and lubricate the cable(s) and guides. Check the roof opening panel alignment. Refer to the relevant section of the workshop manual. Check the motor function. |
| Water ingress from roof opening panel | Debris in the channels/guides Drain tube(s) blocked Damage to the glass panel seal Roof opening panel not correctly aligned | Check for general debris and blocked drain tube(s). Inspect, clean and lubricate the cable(s) and guides. Check the glass panel seal. Check the roof opening panel alignment. Refer to the relevant section of the workshop manual. |
| Wind noise | Damage to the glass panel seal Cable(s) sticking/damaged Roof opening panel not correctly aligned | Check the glass panel seal. Inspect, clean and lubricate the cable(s) and guides. Check the roof opening panel alignment. Refer to the relevant section of the workshop manual. |
DTC Index
For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to Diagnostic Trouble Code (DTC) Index - DTC: Module Name: Central Junction Box article.
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- Check the alignment of the roof opening panel. The roof opening panel should be central in the roof opening.
- Raise the roof opening panel glass. Open the roof opening panel shield.
- Release the upper edges of the RH and LH roof opening panel side trims.
- Close the roof opening panel.
- Loosen the 4 screws.
- Align the roof opening panel glass.
- Align the roof opening panel glass. Tighten the screws to 5 Nm.
- With assistance position the moving panel and tighten the fixings.
- Secure the upper edges of the RH and LH roof opening panel side trims.
REMOVAL
Note. Some variation in the illustrations may occur, but the essential information is always correct.
Note. Removal steps in this procedure may contain installation details.
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- Release the wind deflector.
INSTALLATION
- To install, reverse the removal procedure.
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- Open the roof opening panel shield.
- Raise the roof opening panel glass.
- Release the upper edges of the RH and LH roof opening panel side trims.
- Remove the RH and LH roof opening panel side trims. Release the front of the RH and LH roof opening panel side trims and slide forwards.
- Remove the roof opening panel glass. Remove the 6 screws.
- Install the roof opening panel glass. Tighten the screws to 6 Nm (4 lb.ft).
- Align the roof opening panel glass to the roof. See «Roof Opening Panel Alignment»(/land-rover/range-rover/l322-2009-2012/remont/sun-rooft-topconvertible-top/#roof-opening-panel) .
- Install the RH and LH roof opening panel side trims, starting with the rear ends.
- Secure the upper edges of the RH and LH roof opening panel side trims.
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- Remove the roof opening panel glass. See «Roof Opening Panel Glass»(/land-rover/range-rover/l322-2009-2012/remont/sun-rooft-topconvertible-top/#roof-opening-panel) .
- Release the spacing rod from the lifter arm.
- Remove the roof opening panel side trim.
- Remove the lifter arm. Slide the lifter arm backwards. Raise the front of the lifter arm.
- Install the lifter arm. Lower the front of the lifter arm. Slide the lifter arm forwards.
- Install the roof opening panel side trim.
- Secure the spacing rod to lifter arm.
- Install the roof opening panel glass. See «Roof Opening Panel Glass»(/land-rover/range-rover/l322-2009-2012/remont/sun-rooft-topconvertible-top/#roof-opening-panel) .
| WARNING | Persons working on the supplemental restraint system (SRS) must be fully trained and have been issued with the safety guidelines. |
| WARNING | Allow a period of 10 minutes to elapse after disconnecting the battery before undertaking any work on the SRS. |
| WARNING | The SRS electrical connectors are unique. DO NOT force, or attempt to connect electrical connectors to the wrong sockets. |
| WARNING | The correct procedures must always be used when working on SRS components. |
| WARNING | It is imperative that before any work is undertaken on the SRS system, the appropriate information is read thoroughly. |
| WARNING | Always disconnect both battery cables before beginning work on the SRS system. Disconnect the ground cable first. Never reverse connect the battery. |
| WARNING | Take extra care when handling SRS components. |
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- Disconnect the battery ground cable. Refer to «Specifications»(/land-rover/range-rover/l322-2009-2012/remont/charging-system/#battery-and-charging-system-general-information) .
- Make the air bag supplemental restraint system (SRS) safe. Refer to «Standard Workshop Practices»(/land-rover/range-rover/l322-2009-2012/remont/dtc-index/#dtc-index-general-information) .
- Remove the headliner. Refer to «Headliner»(/land-rover/range-rover/l322-2009-2012/remont/exteriorinterior-trim/#interior-trim-and-ornamentation)
- Release the roof opening panel drain tubes.
- Release the wiring harness from the roof opening panel.
- Disconnect the roof opening panel motor electrical connector.
- Remove the screw from the roof opening panel motor and the roof opening panel.
- Remove the 2 bolts from the front of the roof opening panel. Remove the 2 washers.
- With assistance, remove the roof opening panel. Remove the 10 bolts.
- Clean the roof opening panel and mounting surface.
- With assistance, install the roof opening panel. Install the bolts and tighten to 10 Nm (7 lb.ft).
- Install the screw to the roof opening panel motor and the roof opening panel. Tighten to 6 Nm (4 lb.ft).
- Connect the electrical connector to the roof opening panel motor.
- Secure the wiring harness to the roof opening panel.
- Secure the roof opening panel drain tubes.
- Install the headliner. Refer to «Headliner»(/land-rover/range-rover/l322-2009-2012/remont/exteriorinterior-trim/#interior-trim-and-ornamentation) article.
- Connect the battery ground cable. Refer to «Specifications»(/land-rover/range-rover/l322-2009-2012/remont/charging-system/#battery-and-charging-system-general-information) article.
Scheme 23
- Remove the overhead console. Refer to «Overhead Console»(/land-rover/range-rover/l322-2009-2012/remont/gauges-instrument-panels/#instrument-panel-and-console) .
- Remove the roof opening panel motor. Disconnect the roof opening panel motor electrical connector. Remove the 3 screws.
- Install the roof opening panel motor. Tighten the bolts to 5 Nm (4 lb.ft). Tighten the bolt to 10 Nm (7 lb.ft). Connect the roof opening panel motor electrical connector.
- Install the overhead console. Refer to «Overhead Console»(/land-rover/range-rover/l322-2009-2012/remont/gauges-instrument-panels/#instrument-panel-and-console) .
- If the roof opening panel motor is to be replaced, the one touch and anti-trap function will become inoperative. Close the roof opening panel and continue to hold the switch for a further 20 seconds to allow the sunroof to complete a full cycle. This will complete the roof opening panel calibration routine and reset these functions.
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- Remove the roof opening panel glass. See «Roof Opening Panel Glass»(/land-rover/range-rover/l322-2009-2012/remont/sun-rooft-topconvertible-top/#roof-opening-panel) .
- Release the roof opening panel shield. Remove the 4 bolts.
- Remove the roof opening panel shield. Reposition the roof opening panel shield brackets.
- Install the roof opening panel shield. Align the roof opening panel shield brackets. Tighten the bolts.
- Install the roof opening panel glass. See «Roof Opening Panel Glass»(/land-rover/range-rover/l322-2009-2012/remont/sun-rooft-topconvertible-top/#roof-opening-panel) .