12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNew owner question on diagnostic tool and A/C
Reported or suspected cause
exact symptom i saw
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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Discussions that report identifying a cause
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Reported cause
It was the exact symptom I saw when my switch started to fail.
Leading evidence: 'exact symptom i saw' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'exact symptom i saw' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check blower motor' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Discussions that performed work without a confirmed outcome
1
Discussions that contain suggestions
1
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
i guess this Friday the fan is coming out (i checked the fuse).
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion
If the fuse is okay then check the blower motor for electricity.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion
As others have mentioned, the blower motor is pretty easy to take out and you can also check the power at the blower at the same time (after checking the fuse of course).
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Suggestion
As others have mentioned, the blower motor is pretty easy to take out and you can also check the power at the blower at the same time (after checking the fuse of course).
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
As others have mentioned, the blower motor is pretty easy to take out and you can also check the power at the blower at the same time (after checking the fuse of course).
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Suggestion
Once you get access to the motor connector, check the voltage before working further...if there is easier access to the wiring harness for that motor, I'd use a pin probe to tap the wires for the motor and check for voltage, possibly saving some work so you don't find out only after getting the motor out that it wasn't the problem.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Once you get access to the motor connector, check the voltage before working further...if there is easier access to the wiring harness for that motor, I'd use a pin probe to tap the wires for the motor and check for voltage, possibly saving some work so you don't find out only after getting the motor out that it wasn't the problem.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
12 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I cleaned it and plugged it back in and it has worked fine ever since.
Hello, I have a 2004 996 cabriolet (C2). The heat/AC blower stopped working, the control unit is working. Will the diagnostic tool show what is the issue?
Thanks
Probably, but a safe bet is your ignition switch, to quote someone on the board but I forget who, it is always the ignition switch.
Actually when my switch went in my first 996 I had the exact same symptom you have. It may even start to work sometimes when you start the car and not other times.
No, the diagnostic tool (Durametric or OBDII code reader) will not show what is the issue. Did you check the fuse? Did you check to see if you have 12V to the blower motor? You can remove the blower motor pretty easily and see if it spins or runs on a separate 12V supply. After that, it could be the ignition switch (maybe) or a faulty blower motor (probably).
Nir,
I probably shouldn't have given you that answer as your introduction to the group. It was half tongue-in-cheek because "it is always the switch" is my favorite saying on the forum.
AS dbjoe stated, you should start by checking the fuse. The fuses are in the plastic panel by your left foot (assuming left hand drive). If the fuse is okay then check the blower motor for electricity. I have never had to do that but have read that it is easy. The ignition switch is a known weak point in the 996 and can cause all sorts of electrical gremlins including your symptom. It was the exact symptom I saw when my switch started to fail. Usually if it is the switch, it will be intermittent in other words sometimes when you start the car the blower will work and sometimes it won't.
The Durametric is a very useful tool that I do not own. Besides reading out various values, like cam deviation, etc., it can turn on and off various devices in the car including most of the fans and blowers. I believe the A/C blower is one of the ones it can turn on. But it will not tell you it is a blown fuse or bad motor or bad switch.
Nir, I had the same problem a few years ago. I could see the change of fan speed on the screen, but no air blew through the vents. I pulled the motor out and found some debris in the fan itself. I cleaned it and plugged it back in and it has worked fine ever since.
As others have mentioned, the blower motor is pretty easy to take out and you can also check the power at the blower at the same time (after checking the fuse of course).
Good luck!
So this is much more difficult then I thought.
I look at the Pelican process and they say to remove the vent hose and the fan will drop. The thing is I don't have a vent hose, the fan is blocked by a metal rod.
Maybe because it's a cabriolet?
I'm stuck.
No, mine is a cab also. It's been a while since I did it, but as I recall it was not difficult at all. I removed the lower dash cover, removed a vent tube and that exposed the blower motor. A couple of bolts, unplugged it and it was out.
The DIY you're looking at is for the MK1 996. There are slight changes in the two models. The dash/airbag/glovebox, etc.... You should still be able to remove the foam cover then 2 6 mm bolts and gain access to the blower motor.
Is it consistently not running, or does it sometimes work?
If it is intermittent, the switch might be the culprit (that was my experience). If it NEVER works, it could be a fuse or the motor itself.
*edit* I see you checked the fuse.
Once you get access to the motor connector, check the voltage before working further...if there is easier access to the wiring harness for that motor, I'd use a pin probe to tap the wires for the motor and check for voltage, possibly saving some work so you don't find out only after getting the motor out that it wasn't the problem.
I removed the 2 6mm bolts and got to the blower. the issue is that there is a still bar connected from the passenger side to the mid console that blocks the blower removal.
do i need to take it out? (looks like it's connected to the glove box).
This is a source reference. Confirm exact model applicability in the original material.
