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VW MKV-A5 Golf/Jettas Discussions area for A5/MkV Jetta/Golf (2005/2006 PD and 2009 CR).

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Old February 9th, 2011, 19:41   #1
xxcsu
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Lightbulb Blower motor in 2006 Jetta stopped working

Anyone know where is the relay located ? part number maybe
I dont think the problem is with the resistor pack ,the fan not working on any speed...all fuse is ok... any idea ?
Thank You!
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Old February 10th, 2011, 11:44   #2
Ol'Rattler
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No relays. Fan is CanBus (computer) controlled.

Step one would be to check fuses. There are HVAC fuses at multiple locations. (Bentleys)

Something I have done on older cars is to access the blower, turn the ignition and fan to on and spin the blower with a pencil. if the blower is shot it will sometimes work this way enough to tell you it is getting power.

While you are at the motor, undue the connector, turn the ignition and blower switch on and check for voltage.

After that it is time to hook up a VCDS and pull DTCs.

If you have to replace the blower or the resistor pack, I would replace both.
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2006 Jetta TDI
5 speed, Manufactured 06/06
DC stage 1 SMF Clutch
Draw-Tite hitch
Dash Tray
Blue tint aspherical mirrors
Euro Cupholder
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VCDS Hacks: DRL Disabled-Seatbelt Chime Disabled-Key fob Power Windows
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Old February 10th, 2011, 12:41   #3
xxcsu
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I just checked with ross-tech vcds, i got 1 fault code:

Thursday,10,February,2011,15:40:43:21084
VCDS Version: Release 10.6.3
Address 08: Auto HVAC Labels: 1K0-907-044.lbl
Control Module Part Number: 1K0 907 044 BE
Component and/or Version: ClimatronicPQ35 090 0808
Software Coding:
Work Shop Code: WSC 00000 000 00000
VCID: 6BDE0BA93303
1 Fault Found:
01273 - Fresh Air Blower (V2)
014 - Defective - Intermittent
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Old February 10th, 2011, 13:57   #4
xxcsu
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connected the blower motor directly to 12v , and then its working fine , blowing air , like crazy... checked all fuse... everythink looks ok... have to be a relay somewhere.. my ac not kicking out , when i set the temp to low... Maybe ac relay ? Any idea ? i checked the enginn area on the driver side , i found only one relay (part no: 7M0 951 253A) , under a black cover with some fuse's... Where is the ac relay located ?
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Old February 11th, 2011, 11:00   #5
Ol'Rattler
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Per Bentley's there is no relay for A/C.

Just checked my car, and with the engine running, if you have the fan on any position except fan speed 0, and turn on the A/C, the A/C comes on. If you turn the fan to 0, the A/C light goes off. If the controller never sees anything except 0, the A/C will not even turn on the A/C light.

Given that you can make the fan work by jumping it directly, I would assume that the blower and resistor pack are not the problem.

For what ever reason, the CanBus "on"command from the switch is not seen by the controller. It would explain why the A/C doesn't work either. That one could be a bad switch or wiring. The other less likely senario could be that the fan is commanded on but there is a wiring or fuse issue between the fan and the controller.

Something to try with VCDS is something called a readiness test and also I have seen references to guided fault finding, or something like that. When I get a chance, I will fire up my CD version of Bentleys and study a little closer.

Do you have Climatic or Climatronic? What is your build date?
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2006 Jetta TDI
5 speed, Manufactured 06/06
DC stage 1 SMF Clutch
Draw-Tite hitch
Dash Tray
Blue tint aspherical mirrors
Euro Cupholder
Euro Light Switch
2nd grocery hook
VCDS Hacks: DRL Disabled-Seatbelt Chime Disabled-Key fob Power Windows
Adjusted Cam to Crank Timing

Last edited by Ol'Rattler; February 11th, 2011 at 11:07.
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Old February 11th, 2011, 21:33   #6
Ol'Rattler
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Just looked at the CD Bentleys and from the DTC you pulled you probably have Climatronic.

If that is correct, putting 12V directly to the motor was a bad idea. You may have blown out the J126 Blower motor controller that is integral with the blower motor.

Something about these CanBus cars is you never should put power straight to something unless you know EXACTLY what that power is doing. 12V on the CanBus, for example, can brick some expensive components very quickly.

I did find some Guided Fault Finding stuff on the Bentleys CD that may help to pinpoint exactly were the problem is....................
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2006 Jetta TDI
5 speed, Manufactured 06/06
DC stage 1 SMF Clutch
Draw-Tite hitch
Dash Tray
Blue tint aspherical mirrors
Euro Cupholder
Euro Light Switch
2nd grocery hook
VCDS Hacks: DRL Disabled-Seatbelt Chime Disabled-Key fob Power Windows
Adjusted Cam to Crank Timing

Last edited by Ol'Rattler; February 11th, 2011 at 21:41.
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Old February 12th, 2011, 10:17   #7
xxcsu
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YEAH ! Its working Again !!! No problem at all
There is what i've done :
  1. - Checked all fuse - all ok
  2. - Pulled a code with VCDS : 01273 - Fresh Air Blower (V2) Deffective
  3. - Disconnected the battery - Straight 12v to blower motor - result : motor working
  4. - Left the blower motor disconected , reconnected the battery , run VCDS again , i got a different code , i can not recall exactly what was that , but something like : 01273 - Fresh Air Blower (V2) Failure
  5. - Then i cleared the codes with VCDS
  6. - Disconnected and reconnected the battery
  7. - Reconnected the blower power wires
  8. - Started the engine , and turned on my CLIMATRONIC , blower started blowing air!!!
  9. - Run VCDS again , no more Fault Codes
Also... there is a few relay is in our TDI They are located below the instrument cluster on the driver side ,above the on board power supply control module... and there is a relay carrier of on board power supply control module , on the left under the instrument cluster !


Ol'Rattler ! Thank You for the information ...
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Old February 12th, 2011, 12:23   #8
Ol'Rattler
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Great you got it going again. The car does have relays, just none for the HVAC. Does the A/C work now?

I have heard of folks with controller issues disconnecting the battery cables and touching them together to fix a problem. Sounds like your fix kinda did the same thing.

Thanks for the opportunity to further my limited troubleshooting skills a bit.
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2006 Jetta TDI
5 speed, Manufactured 06/06
DC stage 1 SMF Clutch
Draw-Tite hitch
Dash Tray
Blue tint aspherical mirrors
Euro Cupholder
Euro Light Switch
2nd grocery hook
VCDS Hacks: DRL Disabled-Seatbelt Chime Disabled-Key fob Power Windows
Adjusted Cam to Crank Timing
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Old February 13th, 2011, 06:42   #9
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I bought my 2006 Jetta in Sept 2005... in December 2005 the blower fan stopped working.

The dealer replaced an item they called a relay that took 4 days to come into AZ

1KO-951-253-A RELAY

Listed RELAY as # 75X tested faulty
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Old February 14th, 2011, 11:45   #10
Ol'Rattler
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Quote:
Originally Posted by Crosley View Post
I bought my 2006 Jetta in Sept 2005... in December 2005 the blower fan stopped working.

The dealer replaced an item they called a relay that took 4 days to come into AZ

1KO-951-253-A RELAY

Listed RELAY as # 75X tested faulty
When I was in Bentleys, I did see reference to a terminal 15 and a terminal 30 relay. Do you know what your replacement relay actually controls? With XXCSUs problem I kinda ruled out relays because I couldn't quite follow the current flow through any particular relay to the end user. XXCSUs question about relays I didn't really answer very well................
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2006 Jetta TDI
5 speed, Manufactured 06/06
DC stage 1 SMF Clutch
Draw-Tite hitch
Dash Tray
Blue tint aspherical mirrors
Euro Cupholder
Euro Light Switch
2nd grocery hook
VCDS Hacks: DRL Disabled-Seatbelt Chime Disabled-Key fob Power Windows
Adjusted Cam to Crank Timing
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Old January 15th, 2015, 21:52   #11
ajn007
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Default a potential fix

Ok I solved the issue state above. After reading in multiple spots I was able to diagnose and fix the issue.
First the symptoms:
Heater fan blower does not work period. If your fan spins but not on all speeds check the resistor really easy to remove and carried at most part stores. Check the voltage at the fan plug, if its less than 12 you've probably got this issue or a blown fuse. Check fuse 40 (30amp) for power on top and bottom side of the fuse. If there is no power here or fuse 41 and 42 you've got most likely a bad relay. Another symptom is your window washer will also not work as this is on fuse 41.
What is causing this is a failing 460 relay. Part #1K0951253A. Download the following PDF and go to page http://home.comcast.net/~jeri534/fuses.pdf and go to page 15 and the relay that is in bad is B9. Simply swap b1 into b9 and your fan turns back on this is your problem. If your other 460 relay is bad the car won't run and will strand you. I replaced both for under $20 to stop that scenario from occurring.
Getting at the relay panel is described nowhere. You get to the relay panel by do the following:
Remove 2 T-20 screws in the plastic plate above the Peddles. Remove the plug to the light on the top part of the panel, don't forget to first free the red lock on the back part of the plug. Then use a flathead screw drive to free the clips on the 16 pin purple port. the plastic plate is now free to get the heck out of the way.
Now look straight up to the left of the steering wheel and you'll see the relay panel. You'll need to use a screw drive to remove relay B4[circled in blue in the pic] as arrow shape elongated piece of plastic will stop the panel from coming down [point at in blue in pic]. There are two push clips on each side just behind the wire connectors [look for green arrows for location. The pannel will fall and will need aided to completely come down. Moderate force down. Each 460 relay (black with this number on it circled in read) have clips holding it in, free with flat head. In addition, if you look at the fuse box under your hood you might find what I found. [/IMG] https://drive.google.com/file/d/0ByK...ew?usp=sharing
The 100 amp that feeds the power to the realy was corroded. See second pic. The wire that feeds the power is under the blue 100 and you'll noticed the green corrosion. Put some corrosion remover to stop power supply issues going forward.
https://drive.google.com/file/d/0ByK...ew?usp=sharing
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