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Sunroof stopped working and remains open. 20 amp fuse in fusebox blows everytime its replaced

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  • Cars & Trucks Master
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THE WIRING OR THE MOTOR IS SHORTED. THE MOTOR IS ABOVE THE HEADLINER AND IS A PAIN TO REMOVE AND REPLACE. IF YOU GET LUCKY THE SHORT IS AT THE SWITCH AND YOU CAN LOWER THE PANEL BETWEEN THE SUNVISORS AND CHECK. REMOVE THE SWITCH FROM THE WIRING AND TRY A NEW FUSE. IF IT SHORTS OUT IMMEDIATELY. DROP THE HEADLINER AND SEARCH FOR SHORT. UNPLUG THE MOTOR AND TRY A NEW FUSE. THERE IS A PORT AND A WRENCH WHEREBY YOU CAN MANUALLY CRANK THE SUNROOF CLOSED.

Posted on Apr 09, 2015

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  • Cars & Trucks Master
  • 12,502 Answers

You have a electric short to ground on that circuit !

Posted on Apr 09, 2015

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1 Answer

Wifes sunroof is open and will not close. Checked fuse it has pwr, removed switch it does not have power ... a ground problem at the sunroof motor...where is that?


First off this is controlled by a module (computer) The switch would only have five volts . 5volt reference voltage from the control module . Not knowing how to test the electrical circuit's for this could be expensive . Short out the module or 5 volt ref. voltage circuit inside the module.
Your best bet , take it to a qualified repair shop . Look at a wiring diagram here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on body & accessories ,then under subsystem click sun roof . Then click search button then the blue link . Now tell me you under stand what's happening here .

Power Sunroof System Components
The power sunroof system consists of the following components:
• Sunroof control module
• Sunroof Opening Position Switch (SOPS)
• Sunroof switch
• Sunroof motor/actuator
• Sunroof glass (spoiler type, with glass sliding above roof)
• Sunshade
• Rail and track assembly upon which the sunroof glass rides
• Power supply for the sunroof control module: SUNROOF 20 A fuse
• Ground from G302

Sunroof Opening Position Switch (SOPS)
The SOPS tracks the position of the glass through 2 limit switches:
• Soft stop limit
• Vent limit
The sunroof control module monitors the limit switches and based on the inputs determines the position of the sunroof glass. As a limit switch closes, the 5 volt reference will be shorted to the sunroof limit switch low reference circuit, pulling down the 5 volt reference to 0 volts.
The sunroof control module understands the position of the sunroof glass based on the different input combinations through the sunroof limit switch soft stop signal and sunroof limit switch open vent signal circuits.

Power Sunroof Does Not Close
Perform the Initialization/Teach Process any time a new sunroof motor actuator is installed in the vehicle or any time an existing sunroof motor actuator is removed from the vehicle. Refer to Sunroof Motor/Actuator Initialization/Teach Process .

Oct 23, 2017 | Pontiac Cars & Trucks

1 Answer

My 2006 mazda sunroof is stuck open


Open up fusebox in the cabin . Remove the 15 amp fuse labelled "ROOM" ( near the bottom). Then check to make sure the relay/ motor wasnt getting any power by clicking all of the sunroof control buttons. Sit for a minute plug the fuse back in, and try the sunroof controls again. First time you click nothing might happen but hold down close and sure enough it should close then.

Dec 18, 2016 | Mazda Cars & Trucks

1 Answer

2006 Chevy Envoy Denali moonroof stuck open manually close


You mean GMC not Chevy ! Chevy doesn't make the Envoy . There is no way to manually close the sunroof !
Power Sunroof Inoperative
If voltage is not measured on the sunroof switch open signal or sunroof switch close signal circuits, the fault could be in the retained accessory power (RAP) supply voltage circuit, battery positive voltage circuit, or sunroof motor ground circuit. If the sunroof motor is not being powered, neither will the sunroof switch signal circuits.

2

Attempt to operate the sunroof through its full range of functions in order to verify that the power sunroof inoperative fault is present.
Does the power sunroof system operate normally?
--
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
YES - Go to Step 3

3
Is the sunroof in the fully closed position?
--
YES - Go to Step 4
NO - Go to Step 7

4
  1. Disconnect the sunroof switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Connect a 3-amp fused jumper wire to the low reference circuit of the sunroof switch harness connector.
  4. Connect the other end of the 3-amp fused jumper wire to the sunroof switch open signal circuit of the sunroof switch harness connector, for 3 seconds.
Did the sunroof open?
--
YES - Go to Step 17
NO - Go to Step 5

5

  1. Disconnect the 3-amp fused jumper wire.
  2. Measure the voltage from the sunroof switch open signal circuit of the sunroof switch harness connector to the low reference circuit of the sunroof switch harness connector.
Does the voltage measure near the specified value?
B+
YES - Go to Step 13
NO - Go to Step 6

6

Measure the voltage from the sunroof switch open signal circuit of the sunroof switch harness connector to a good ground.
Does the voltage measure near the specified value?
B+
YES - Go to Step 14
NO - Go to Step 10

7
  1. Disconnect the sunroof switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Connect a 3-amp fused jumper wire to the low reference circuit of the sunroof switch harness connector.
  4. Connect the other end of the 3-amp fused jumper wire to the sunroof switch close signal circuit of the sunroof switch harness connector, for 3 seconds.
Did the sunroof close?
--
YES - Go to Step 17
NO - Go to Step 8

8

  1. Disconnect the 3-amp fused jumper wire.
  2. Measure the voltage from the sunroof switch close signal circuit of the sunroof switch harness connector to the low reference circuit of the sunroof switch harness connector.
Does the voltage measure near the specified value?
B+
YES - Go to Step 15
NO - Go to Step 9

9

Measure the voltage from the sunroof switch close signal circuit of the sunroof switch harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 14
Go to Step 10

10

  1. Disconnect the sunroof motor harness connector.
  2. Measure the voltage from the battery positive voltage circuit of the sunroof motor harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 11
Go to Step 19

11

Measure the voltage from the retained accessory power (RAP) supply voltage circuit of the sunroof motor harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 12
Go to Symptoms - Computer/Integrating Systems in Computer/Integrating Systems

12

  1. Turn OFF the ignition.
  2. Measure the resistance from the ground circuit of the sunroof motor harness connector to a good ground.
Does the resistance measure less than or equal to the specified value?
5 ohms
Go to Step 16
Go to Step 20

13

Test the sunroof switch close signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

14

Test the sunroof switch low reference circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

15

Test the sunroof switch open signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

16

Test the appropriate sunroof switch signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

17

Inspect for poor connections at the harness connector of the sunroof switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 21

18

Inspect for poor connections at the harness connectors of the sunroof motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 22

19

Repair the short to ground or open in the sunroof motor battery positive voltage circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 23
--

20

Repair the open in the sunroof motor ground circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 23
--

21

Replace the sunroof switch. Refer to Sunroof Switch Replacement .
Did you complete the replacement?
--
Go to Step 23
--

22

Replace the sunroof motor. Refer to Control Module References in Computer/Integrating Systems.
Did you complete the replacement?
--
Go to Step 23
--

23

Operate the system in order to verify the repair.
Did you find and correct the condition?
--
System OK
Go to Step 2

Jul 31, 2016 | Cars & Trucks

1 Answer

Hi the sunroof just stopped working dead it was working fine one day the next day nothing what could it be?


When they are not used a lot the mechanism gets slightly seized which causes undue strain on the motor that opens and shuts sunroof.this can overload the circuit and cause the fuse to blow.change for a higher rated fuse just to get the roof to open ....then clean and lubricate all working parts and clean out the rain channels which will prevent proper drainage.once it is used several times and greased properly you should refit the correct amp fuse again.hope some of this advice is of use.

Apr 13, 2015 | Cars & Trucks

2 Answers

My tail light fuse on my92 s-10 just keeps on blowin and when it blows my tail lights and my inside dash lights doint work, howcome it would b doin that??


Check your tail light and other running light sockets for corrosion.
Pull each and every bulb to check it, also check the back side of the socket.
(Your headlights are not part of this circuit.)
Rust or water with rust will conduct enough current to blow the fuses.
Please revert back to the 20 amp fuse, as you may damage the wires leading to the bulbs in places you won't be able to find or fix.
It's unlikely that it's one of the actual light bulbs, all light bulbs tend to go open instead of shorted, but you can check them too.

May 31, 2012 | Cars & Trucks

1 Answer

Sunroof and some dashboard lights are not working on my 1994 VW golf. Is this a fuse issue. Where is the fuse box. How easy is this to take care of myself? thanks, meta


I would check the fuses. The fusebox is to the left of the steering column, under the dash. There should be a black plastic cover door to open to gain excess to the fusebox.

Nov 03, 2010 | 1994 Volkswagen Golf

3 Answers

Rear wiper has stopped working in audi a3 - where and how do i change the fuse? the washers have also stopped at the same time. would this be the same fuse?


Yes, is the same fuse nr.41 (15A) !
For Audi A3 the fuse box is located on the left side of dashboard behind a plastic cover (for left hand steering wheel vehicle). On inner face of the plastic cover you will find the fuse diagram.
The fuse nr.41, (the second fuse from right to left direction, on the second row from bottom to upper direction, on the fuse box), F41 (15A) = Rear screen wash & wipe system !!!
Replace blowed fuse with new one and problem will be solved quickly !
Please rate my response. Thanks!

Apr 07, 2010 | 2005 Audi A3

1 Answer

Starter fuse blowing out on my 2001 sebring con. 2.7 V6


my 2001 sedan 2.7l used to blow the 20 amp everytime i try to crank it... took it to a mechanic and he replaced it with a 30 amp, no problems since, going on about 2yrs now. I am sure he checked the circuit flow or something like that....hope this works for you.

May 16, 2009 | 2001 Chrysler Sebring

1 Answer

Electrical problem after battery replacement.


Below is a listing of which fuse corresponds with which circuit:

1 - 10 Amp - Transmission Controller, Gauges, Autostick
2 - 10 Amp - Right High Beam Headlight
3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
5 - 10 Amp - Washer Motor
6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
19 - 15 Amp - Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor
20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats

Apr 04, 2009 | 2002 Dodge Intrepid

3 Answers

Jetta electrical problems


hi, i recently bought a used 2001 jetta and had the same problem...auto locks, sunroof, windows, interior lights, trunk switch on door all stopped working all of a sudden. replaced fuse #14 and everything works like magic again...

I found this fuse diagram A LIFE SAVER!!!



-----------------[ S8 ][S 12][S 16][S 20]
-----------[ S5 ][ S9 ][S 13][S 17][S 21]
[ S1 ][ S3 ][ S6 ][S 10][S 14][S 18][S 22]
[ S2 ][ S4 ][ S7 ][S 11][S 15][S 19][S 23]
[ S 24 ] [ S 31 ] [ S 38 ] -- -- --
[ S 25 ] [ S 32 ] [ S 39 ] R R R
[ S 26 ] [ S 33 ] [ S 40 ] S S S
[ S 27 ] [ S 34 ] [ S 41 ] -- -- --
[ S 28 ] [ S 35 ] [ S 42 ] R R
[ S 29 ] [ S 36 ] [ S 43 ] S S
[ S 30 ] [ S 37 ] [ S 44 ] -- --

S1=10 AMP=Heated washer nozzles, glove compartment light, memory seat...
S2=10 AMP=Turn Signal System
S3=5 AMP=Fog Light Relay, Instrument Panel Dimmer Switch
S4=5 AMP=License Plate Lamps
S5=7.5 AMP=Comfort System, Cruise Control, Climatronic, A/C, Heated Seat Control Modules, Day/Night Dimming Mirror, Control Module and Control Unit for Multifunction Steering Wheel.
S6=5 AMP=Central Locking System
S7=10 AMP=Back-up Lights, Speedometer Vehicle Speed Sensor.
S8=OPEN
S9=5 AMP=Anti-Lock Brakes.
S10=10 AMP for GAS/5 AMPS for Diesel=ECM
S11=5 AMP=Instrument Cluster
S12=7.5 AMP=B+ (battery positive for data-link connector) (DLC).
S13=10 AMP=Brake Lights
S14=10 AMP=Interior Lights, Central Locking System
S15=5 AMP=Instrument Cluster, Automatic Transmission Control Module (TCM).
S16=10 AMP=A/C Clutch, After Run Coolant Pump.
S17=Open
S18=10 AMP=High Beam Right
S19=10 AMP=High Beam Left
S20=15 AMP=Low Beam Right
S21=15 AMP=Low Beam Left
S22=5 AMP=Parking and Side Marker Lights, Right
S23=5 AMP=Parking and Side Marker Lights, Left
S24=20 AMP=Front Wiper Motor, Washer Pump
S25=25 AMP=Fresh Air Blower, Climatronic, A/C
S26=25 AMP=Rear Window Defogger
S27=15 AMP=Rear Wiper Motor
S28=15 AMP=Fuel Pump, Gas Engine Only
S29=15 AMP Gas/10 AMPS Diesel=ECM
S30=20 AMP=Sunroof Control Module
S31=20 AMP=Automatic Transmission Control Module
S32=10 AMP Gas for Fuel Injectors/15 AMP Diesel for ECM
S33=20 AMP=Headlight Washer System
S34=10 AMP=Engine Control Elements
S35=30 AMP=12 VDC Outlet in Trunk
S36=15 AMP=Fog Lights
S37=10 AMP=Radio Terminal 86S, Instrument Cluster
S38=15 AMP=Central Locking System (w/ Power Windows), Luggage Compartment Light, Remote Fuel Tank Door, Rear Lid Unlock.
S39=15 AMP=Emergency Flashers
S40=20 AMP=Dual Tone Horn
S41=15 AMP=Cigarette Lighter
S42=25 AMP=Radio System
S43=10 AMP=Engine Control Elements
S44=15 AMP=Heated Seats

hope this helps ; )

Sep 14, 2008 | 2001 Volkswagen Jetta TDI

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