SUN ROOF - POWER

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ARTICLE BEGINNING

1998 ACCESSORIES & EQUIPMENT Volkswagen - Power Sun Roofs

Beetle, Golf, GTI, Jetta, Passat

* PLEASE READ THIS FIRST *

NOTE: Sun roof testing information for the Beetle is not available. See WIRING DIAGRAMS to aid in testing and diagnosis.

DESCRIPTION & OPERATION

The power sun roof is operable when ignition is on. Onvehicles with power door locks or power windows, power sun roof canalso be closed by inserting key in driver's door lock and holding keyin the locked position (comfort closing). If power sun roof systemfails, sun roof can be operated manually by removing interior light,removing cable drive cover, and rotating drive with crank.

ADJUSTMENTS

CABLE DRIVE

Golf, GTI & Jetta If cable drive is replaced, it must be installed in "O"(closed) position. To do so, ensure Sun Roof Control Module (SRCM) isconnected. SRCM is located behind cover in center of interior roof,near sun roof controls. Operate sun roof switch and count the numberof turns of the drive pinion. See Fig. 1. The "O" position is between"switch off" point's "A" (2 turns counterclockwise) and "B" (8 1/4turns clockwise).

Fig. 1: Cable Drive Adjustment (Golf, GTI & Jetta)

Passat With sun roof motor removed but still connected electrically,select closed roof with automatic rotary switch. Sun roof motor is

located behind cover in center of interior roof, near sun roofcontrols. Sun roof motor will run to "O" (closed) position and switchoff. Install motor in "O" position with sun roof closed.

PARALLEL ALIGNMENT

Golf, GTI & Jetta 1) Obtain radio activation code from vehicle owner.Disconnect negative battery cable. Ensure glass panel is closed. Pushback sliding headliner and trim frame. See Fig. 4. 2) Remove interior light. Remove sun roof cable drive cover.Remove cable drive. Lower pinion drive until drive pinion no longermeshes with cables. Ensure locking levers are engaged in guide rails. 3) Move rear guide pins from front to rear, ONLY as far asmarks or notches. See Fig. 2. Install cable drive using new self-locking screws. Install cable drive cover and interior light.Reconnect negative battery cable.

Fig. 2: Checking Parallel Alignment (Golf, GTI & Jetta)

Passat 1) Tilt sun roof open. Fully push back sliding headliner.Unclip lower trim, slide forward out of elongated holes. Unclip uppertrim and remove in rearward direction. See Fig. 3. Close sun roof. 2) Move guide pins from front to rear, ONLY as far as marksor notches. See Fig. 4. Locating hooks must be in guide rails. Installsun roof motor in "O" position. Check "O" position. See CABLE DRIVE.

Fig. 3: Removing Sun Roof Trim Pieces (Passat)

Fig. 4: Checking Parallel Alignment (Passat)

SUN ROOF HEIGHT

Golf, GTI & Jetta 1) Ensure parallel alignment is correct. SeePARALLEL ALIGNMENT. Tilt glass panel open. Push back sun roofheadliner. Release trim frame and push to rear. Close glass panel. 2) Loosen all 4 adjustment screws on glass panel. Adjust sunroof panel front height by positioning .039" (1 mm) lower than roof.Adjust sun roof panel rear height by positioning .039" (1 mm) higherthan roof. See Fig. 5. Tighten adjustment screws to 53 INCH lbs. (6 N.m).

Passat 1) Ensure "O" position is okay. See CABLE DRIVE. Tilt sunroof open. Fully push back sliding headliner. Unclip lower trim andslide forward, out of elongated holes. Unclip upper trim and remove inrearward direction. See Fig. 3. Close sun roof. 2) Loosen all glass panel adjustment screws. Adjust sun roofpanel front height by positioning .039" (1 mm) lower than roof. Adjustsun roof panel rear height by positioning .039" (1 mm) higher thanroof. See Fig. 5. Tighten adjustment screws to 35-44 INCH lbs. (4-5 N.m).

Fig. 5: Adjusting Sun Roof Panel Height (Golf, GTI & Jetta Shown;Passat Similar)

MAINTENANCE

DRAIN TUBES

Golf, GTI & Jetta Fabricate a cleaning probe from a used 7 1/2 foot speedometercable core. Front drain tubes are routed through "A" pillars anddischarge above front door hinge. Clean front drain tubes through sunroof opening. Rear drain tubes are routed through "C" pillars anddischarge behind rear wheel housing. Clean rear drain tubes from lowerend of hose.

Passat Fabricate a cleaning probe from a used 7 1/2 foot speedometercable core. Front drain tubes are routed through "A" pillars anddischarge between front door and "A" pillar. Clean front drain tubesthrough sun roof opening. Rear drain tubes are routed through "C"pillars. On sedan, rear drain tubes discharge behind rear wheelhousing, behind rear bumper covering. On station wagon, rear draintubes discharge behind rear wheel housing covering. Wheel housing must

be removed to facilitate cleaning. On all models, clean rear draintubes from lower end of hose.

TROUBLE SHOOTING

* PLEASE READ THIS FIRST *

NOTE: Refer to WIRING DIAGRAMS for terminal identification.

SUN ROOF SYSTEM INOPERATIVE

Golf, GTI & Jetta 1) Ensure sun roof is mechanically okay. Verify fuse S16 andfuse S21 are okay. Ensure ignition and all electrical accessories areoff. Disconnect Sun Roof Control Module (SRCM) 6-pin connector. SRCMis located behind cover in center of interior roof, near sun roofcontrols. 2) Using Test Kit (VW 1594), connect positive voltmeter leadto SRCM 6-pin connector terminal No. 5. See WIRING DIAGRAMS. Connectnegative voltmeter lead to terminal No. 6. If voltage is present, goto next step. If voltage is not present, repair open circuit. 3) Disconnect sun roof switch 4-pin connector. Connectpositive voltmeter lead to sun roof switch 4-pin connector terminalNo. 3. Connect negative voltmeter lead to SRCM 6-pin connectorterminal No. 6. Turn ignition on. If voltage is present, go to nextstep. If voltage is not present at switch, repair open circuit. 4) Turn ignition off. Check continuity between sun roofswitch 4-pin connector terminal No. 1 and SRCM 6-pin connectorterminal No. 2. If continuity exists, go to next step. If continuitydoes not exist, repair open circuit. 5) Ensure ignition is off. Check continuity between sun roofswitch 4-pin connector terminal No. 2 and SRCM 6-pin connectorterminal No. 1. If continuity exists, go to next step. If continuitydoes not exist, repair open circuit. 6) Ensure ignition is off. Check continuity between sun roofswitch 4-pin wiring harness connector terminal No. 4 and SRCM 4-pinconnector terminal No. 3. If continuity exists, go to next step. Ifcontinuity does not exist, repair open circuit. 7) Connect sun roof switch 4-pin connector. Connect negativevoltmeter lead to SRCM 6-pin connector terminal No. 6 (ground). Turnignition on. If voltage is as specified in appropriate SUN ROOF SWITCHTESTING table, go to next step (replace sun roof control module onPassat). If voltage is not as specified, replace sun roof switch.

SUN ROOF SWITCH TESTING TABLE (GOLF, GTI & JETTA)ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄVoltmeter (1) LeadConnected To 6-Pin Sun Roof SpecifiedConnector Terminal No. Switch Position Value

1 ......................... Neutral ............ 0 Volts1 .......................... Close ..... Battery Voltage1 ........................ Tilt Down ... Battery Voltage2 ......................... Neutral ............ 0 Volts2 ......................... Tilt Up .... Battery Voltage3 ......................... Neutral ......... 10.3 Volts3 .......................... Open ...... Battery Voltage

(1) - Connect positive voltmeter lead to SRCM 6-pin connector as identified. See WIRING DIAGRAMS for terminal identification.ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

8) If vehicle is not equipped with a central locking system,

replace SRCM. If vehicle is equipped with a central locking system,turn ignition off and remove ignition key. 9) Using Test Kit (VW 1594), connect positive voltmeter leadto SRCM 6-pin connector terminal No. 4. Connect negative voltmeterlead to SRCM connector terminal No. 6. Lock driver's door with key andhold in lock position. If voltage changes to 12 volts, replace SRCM.If voltage does not change (remains at zero), repair open circuit.

REMOVAL & INSTALLATION

CARRIER UNIT

Removal & Installation (Golf, GTI & Jetta) 1) Detach drain tubes from carrier unit. Remove cable drive.Remove sun roof glass panel. See SUN ROOF GLASS PANEL. Remove 10carrier unit bolts. 2) Using an assistant, lift carrier unit out of vehicle. SeeFig. 6. To install, reverse removal procedure. Place carrier unit onrear mounts and swing upward. Ensure 3 alignment pins line up withholes.

Fig. 6: Exploded View Of Power Sun Roof Assembly (Golf, GTI & Jetta)

Removal & Installation (Passat) 1) Obtain radio activation code from vehicle owner.Disconnect negative battery cable. Remove connections from sun roofmotor. Remove sun roof glass panel. See SUN ROOF GLASS PANEL. 2) Disconnect 4 water drain hoses from carrier unit. Removecarrier unit mounting bolts and remove carrier unit. See Fig. 7. Toinstall, reverse removal procedure.

Fig. 7: Exploded View Of Power Sun Roof Assembly (Passat)

SUN ROOF GLASS PANEL

Removal & Installation (Golf, GTI & Jetta) 1) Tilt sun roof glass panel open. Slide headliner towardrear. Slide trim frame to rear. See Fig. 6. 2) Remove adjusting plate Torx screws. Remove adjustingplate. Pull glass panel upward to remove. Remove trim frame, ifnecessary, by pulling it forward and upward out of roof cut-out. 3) To install, reverse removal procedure. Ensure panel is in"O" (closed) position. Ensure locking levers are engaged in guiderails. Ensure rear guide pins align with marks or notches. See Fig. 2.If not perform PARALLEL ALIGNMENT under ADJUSTMENTS.

Removal & Installation (Passat) 1) Tilt sun roof open. Slide headliner to rear. Unclip lowertrim and slide forward, out of elongated holes. Unclip upper trim andremove in rearward direction. See Fig. 3. Remove 6 glass panelmounting screws (3 each side). Remove glass panel upward out ofvehicle. 2) To install, reverse removal procedure. Ensure panel is in"O" (closed) position. Ensure locking levers are engaged in guiderails. Ensure rear guide pins align with marks or notches. See Fig. 4.If not perform PARALLEL ALIGNMENT under ADJUSTMENTS.

SUN ROOF HEADLINER

Removal & Installation (Golf, GTI & Jetta) 1) Remove glass panel and trim frame. Ensure sun roof is inclosed position. Detach stop (one side only) and press headlinertoward this side. Using a small screwdriver, pry guide feet out ofcarrier guide on opposite side (from front to rear). Swing headlinerout of carrier unit. 2) To install, reverse removal procedure. Insert headliner inroof cut-out. Push headliner to rear until both guide feet engage. SeeFig. 6.

Removal & Installation (Passat)

Remove glass panel. See SUN ROOF GLASS PANEL. Slide headlinerback. Remove 2 front bolts (one each side). See Fig. 8. Pull slideforward over stop. Remove 2 rear bolts (one each side). See Fig. 9.Pull slide rearward and remove headliner. To install, reverse removalprocedure.

Fig. 8: Removing Sun Roof Headliner Front Bolts (Passat)

Fig. 9: Removing Sun Roof Headliner Rear Bolts (Passat)

WIRING DIAGRAMS

Fig. 10: Power Sun Roof System Wiring Diagram (Beetle)

Fig. 11: Power Sun Roof System Wiring Diagram (Golf, GTI & Jetta)

Fig. 12: Power Sun Roof System Wiring Diagram (Passat - With BlueIlluminated Instrument Panel)

Fig. 13: Power Sun Roof System Wiring Diagram (Passat - With GreenIlluminated Instrument Panel)

END OF ARTICLE