98 S70 ECC Blower Motor Quit
#1
08-01-2007, 06:27 PM
98 S70 ECC Blower Motor Quit
Sorry for the seemingly redundant post, the first time I tagged on to the end of a different thread,
but please help....
The blower on my 1998 S70 GLT just quit. Now, no air movement at all.
The fuses are all good and there were no strange noises just prior to the fan stopping. The ECC seems to act normally, with the lights and the timing reset options, just that the blower fan does not work.
I ohmed the climate control fuse and found that the circuit is open when the control is on AUX and shows ~ 53 ohms when switched to 3. Is this normal?
I have learned through previous posts that the resistor could be bad, as well as the blower motor. I removed the glove box and the lower pass. side panel and found the bolster plate. What is the function of the bolster plate and is it connected to any electrical systems or air bag systems?
I have not had a chance to check the yellow connector under the driver side dash.
Any hints?
Thanks
Tim
but please help....
The blower on my 1998 S70 GLT just quit. Now, no air movement at all.
The fuses are all good and there were no strange noises just prior to the fan stopping. The ECC seems to act normally, with the lights and the timing reset options, just that the blower fan does not work.
I ohmed the climate control fuse and found that the circuit is open when the control is on AUX and shows ~ 53 ohms when switched to 3. Is this normal?
I have learned through previous posts that the resistor could be bad, as well as the blower motor. I removed the glove box and the lower pass. side panel and found the bolster plate. What is the function of the bolster plate and is it connected to any electrical systems or air bag systems?
I have not had a chance to check the yellow connector under the driver side dash.
Any hints?
Thanks
Tim
#2
08-04-2007, 10:17 AM
RE: 98 S70 ECC Blower Motor Quit
Hello Tim,
My reply will be based on my knowledge on 850.
As to the blower not responding with known-good fuses, it may be the resistor (power stage) or the blower itself. I am not sure what the required power supply for the blower motor at full go, but if it's 12V, I would remove the blower and connect it directly to the battery to see if it runs. If it does, you have isolated the problem.
As to the bolster, I believe it is there for a safety reason. Although it is not connected to the SRS or any other component, it does have a label about precautions on the SRS.
I hope this gives you some ideas to start with.
JPN
My reply will be based on my knowledge on 850.
As to the blower not responding with known-good fuses, it may be the resistor (power stage) or the blower itself. I am not sure what the required power supply for the blower motor at full go, but if it's 12V, I would remove the blower and connect it directly to the battery to see if it runs. If it does, you have isolated the problem.
As to the bolster, I believe it is there for a safety reason. Although it is not connected to the SRS or any other component, it does have a label about precautions on the SRS.
I hope this gives you some ideas to start with.
JPN
#3
08-08-2007, 04:56 PM
RE: 98 S70 ECC Blower Motor Quit
Thanks JPN.
I powered the blower to 12V and nothing happened. So, I replaced the blower. It took less than an hour and now works great.
The knee bolster had been removed before, I could tell, but it was a pretty straight forward operation.
These are great cars, just a little different to work on.
I have a lot to learn about the 98 Volvo S70 GLT tho.
Regards,
Tim.
I powered the blower to 12V and nothing happened. So, I replaced the blower. It took less than an hour and now works great.
The knee bolster had been removed before, I could tell, but it was a pretty straight forward operation.
These are great cars, just a little different to work on.
I have a lot to learn about the 98 Volvo S70 GLT tho.
Regards,
Tim.
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