Jerry Bransford did pass the time by typing:
> Maybe the '97 GC has a blower relay but my '97 TJ doesn't. The +12
> volts goes directly to the blower resistor pack.

Could be. My manual is only good up till 96. So far it's been fairly
reliable. Only the automatic climate control had a relay.

Wait a sec.. A brain cell way back in the dusty corner of my pointy head
just thought of something. I remember a discussion about a relay being
located behind (or possibly on) the climate control pannel. Can't for
sure say which model or even if it was for a Jeep. That doesn't fit with
my schematics, but who knows what they may have changed.

> DougW wrote:
>> PoBoy did pass the time by typing:
>>
>>> Theres the rub -- the harness isnt there!! Thats why they suspect
>>> it got left behind the dash in some previous work.
>>
>>
>> It has to be there or your blower wouldn't work at all.

 

I have the alldatadiy for the vehicle and the diagram shows it
attached to the outside of blower unit under the dash.
( roughly beside a wiring plug with a harness )
The dealers guys are using the shop manuals, so, on
the surface , it appears that the harness has been routed
incorrectly at some point.

I did look at the blower unit before i took it in and recall
only seeing a single harness to the blower, there was no
other harness. I hadnt looked up the relay info then, i was
checking out the blowers location.

It will be interesting to find out what the story is.

jt


DougW wrote:
> Jerry Bransford did pass the time by typing:
>
>>Maybe the '97 GC has a blower relay but my '97 TJ doesn't. The +12
>>volts goes directly to the blower resistor pack.
>
>
> Could be. My manual is only good up till 96. So far it's been fairly
> reliable. Only the automatic climate control had a relay.
>
> Wait a sec.. A brain cell way back in the dusty corner of my pointy head
> just thought of something. I remember a discussion about a relay being
> located behind (or possibly on) the climate control pannel. Can't for
> sure say which model or even if it was for a Jeep. That doesn't fit with
> my schematics, but who knows what they may have changed.
>
>
>>DougW wrote:
>>
>>>PoBoy did pass the time by typing:
>>>
>>>
>>>>Theres the rub -- the harness isnt there!! Thats why they suspect
>>>>it got left behind the dash in some previous work.
>>>
>>>
>>>It has to be there or your blower wouldn't work at all.
>
>
>
>

 

I have the alldatadiy for the vehicle and the diagram shows it
attached to the outside of blower unit under the dash.
( roughly beside a wiring plug with a harness )
The dealers guys are using the shop manuals, so, on
the surface , it appears that the harness has been routed
incorrectly at some point.

I did look at the blower unit before i took it in and recall
only seeing a single harness to the blower, there was no
other harness. I hadnt looked up the relay info then, i was
checking out the blowers location.

It will be interesting to find out what the story is.

jt


DougW wrote:
> Jerry Bransford did pass the time by typing:
>
>>Maybe the '97 GC has a blower relay but my '97 TJ doesn't. The +12
>>volts goes directly to the blower resistor pack.
>
>
> Could be. My manual is only good up till 96. So far it's been fairly
> reliable. Only the automatic climate control had a relay.
>
> Wait a sec.. A brain cell way back in the dusty corner of my pointy head
> just thought of something. I remember a discussion about a relay being
> located behind (or possibly on) the climate control pannel. Can't for
> sure say which model or even if it was for a Jeep. That doesn't fit with
> my schematics, but who knows what they may have changed.
>
>
>>DougW wrote:
>>
>>>PoBoy did pass the time by typing:
>>>
>>>
>>>>Theres the rub -- the harness isnt there!! Thats why they suspect
>>>>it got left behind the dash in some previous work.
>>>
>>>
>>>It has to be there or your blower wouldn't work at all.
>
>
>
>

 

I have the alldatadiy for the vehicle and the diagram shows it
attached to the outside of blower unit under the dash.
( roughly beside a wiring plug with a harness )
The dealers guys are using the shop manuals, so, on
the surface , it appears that the harness has been routed
incorrectly at some point.

I did look at the blower unit before i took it in and recall
only seeing a single harness to the blower, there was no
other harness. I hadnt looked up the relay info then, i was
checking out the blowers location.

It will be interesting to find out what the story is.

jt


DougW wrote:
> Jerry Bransford did pass the time by typing:
>
>>Maybe the '97 GC has a blower relay but my '97 TJ doesn't. The +12
>>volts goes directly to the blower resistor pack.
>
>
> Could be. My manual is only good up till 96. So far it's been fairly
> reliable. Only the automatic climate control had a relay.
>
> Wait a sec.. A brain cell way back in the dusty corner of my pointy head
> just thought of something. I remember a discussion about a relay being
> located behind (or possibly on) the climate control pannel. Can't for
> sure say which model or even if it was for a Jeep. That doesn't fit with
> my schematics, but who knows what they may have changed.
>
>
>>DougW wrote:
>>
>>>PoBoy did pass the time by typing:
>>>
>>>
>>>>Theres the rub -- the harness isnt there!! Thats why they suspect
>>>>it got left behind the dash in some previous work.
>>>
>>>
>>>It has to be there or your blower wouldn't work at all.
>
>
>
>

 

you need the blower motor module

PoBoy wrote:

> I do use the auto setup.
> I have never seen an Er but will step thru your diag procedure.
>
> Would a fault not cause the check engine light to go on?
>
> When you say the controller is cooked, do you mean the
> Blower Motor Power module or the Automatic Temperature Control
> (ATC) Module or something else?
>
> thx,
> James
>
> Lon wrote:
> > PoBoy proclaimed:
> >
> >> Thanks to all on tips about my (non)heated seat.
> >>
> >> My other problem, ( i had this happen about a week ago, after i came
> >> out of the car wash )
> >>
> >> I parked my truck, turn it off, heater fan stop ( normal ), then the
> >> blower comes on -- and continues to run after removing key!!
> >>
> >> This morning, I am standing in my garage and I hear the blower come on
> >> and run by itself.
> >>
> >> I looked on alldata, under blower and did some searching, could this
> >> be the blower motor resistor, or blower motor relay?
> >
> >
> > If this is the auto setup on the GC, more likely to be the controller
> > gone skyward. Would make more sense than the manual system managing
> > to do this.
> >
> >>
> >> Something I could do my self?
> >
> >
> > Yeah, although with the caution that the reason a shop would charge an
> > arm and a leg is due to the sheer PITA factor.
> >
> >>
> >> Any tips appreciated,
> >
> >
> > If you have the auto temp control system, and ever see "Er" on the
> > display note the numbers.
> >
> > You can completely run the ATC system thru every control from the
> > panel, but first pull any stored fault codes:
> >
> > Press A/C and RECIRC and hold. Rotate control **** one click
> > clockwise. This should light all indicators and segments on the
> > display.
> >
> > Then release the A/C and RECIRC button, which should show test 00
> > on the display.
> >
> > Then push ONE OF either A/C or RECIRC which should show a little
> > stick figure. Any number other than 00 at this point should be
> > recorded. You really don't want to see a 25 or 29, $$$.
> >
> >
> >

 

you need the blower motor module

PoBoy wrote:

> I do use the auto setup.
> I have never seen an Er but will step thru your diag procedure.
>
> Would a fault not cause the check engine light to go on?
>
> When you say the controller is cooked, do you mean the
> Blower Motor Power module or the Automatic Temperature Control
> (ATC) Module or something else?
>
> thx,
> James
>
> Lon wrote:
> > PoBoy proclaimed:
> >
> >> Thanks to all on tips about my (non)heated seat.
> >>
> >> My other problem, ( i had this happen about a week ago, after i came
> >> out of the car wash )
> >>
> >> I parked my truck, turn it off, heater fan stop ( normal ), then the
> >> blower comes on -- and continues to run after removing key!!
> >>
> >> This morning, I am standing in my garage and I hear the blower come on
> >> and run by itself.
> >>
> >> I looked on alldata, under blower and did some searching, could this
> >> be the blower motor resistor, or blower motor relay?
> >
> >
> > If this is the auto setup on the GC, more likely to be the controller
> > gone skyward. Would make more sense than the manual system managing
> > to do this.
> >
> >>
> >> Something I could do my self?
> >
> >
> > Yeah, although with the caution that the reason a shop would charge an
> > arm and a leg is due to the sheer PITA factor.
> >
> >>
> >> Any tips appreciated,
> >
> >
> > If you have the auto temp control system, and ever see "Er" on the
> > display note the numbers.
> >
> > You can completely run the ATC system thru every control from the
> > panel, but first pull any stored fault codes:
> >
> > Press A/C and RECIRC and hold. Rotate control **** one click
> > clockwise. This should light all indicators and segments on the
> > display.
> >
> > Then release the A/C and RECIRC button, which should show test 00
> > on the display.
> >
> > Then push ONE OF either A/C or RECIRC which should show a little
> > stick figure. Any number other than 00 at this point should be
> > recorded. You really don't want to see a 25 or 29, $$$.
> >
> >
> >

 

you need the blower motor module

PoBoy wrote:

> I do use the auto setup.
> I have never seen an Er but will step thru your diag procedure.
>
> Would a fault not cause the check engine light to go on?
>
> When you say the controller is cooked, do you mean the
> Blower Motor Power module or the Automatic Temperature Control
> (ATC) Module or something else?
>
> thx,
> James
>
> Lon wrote:
> > PoBoy proclaimed:
> >
> >> Thanks to all on tips about my (non)heated seat.
> >>
> >> My other problem, ( i had this happen about a week ago, after i came
> >> out of the car wash )
> >>
> >> I parked my truck, turn it off, heater fan stop ( normal ), then the
> >> blower comes on -- and continues to run after removing key!!
> >>
> >> This morning, I am standing in my garage and I hear the blower come on
> >> and run by itself.
> >>
> >> I looked on alldata, under blower and did some searching, could this
> >> be the blower motor resistor, or blower motor relay?
> >
> >
> > If this is the auto setup on the GC, more likely to be the controller
> > gone skyward. Would make more sense than the manual system managing
> > to do this.
> >
> >>
> >> Something I could do my self?
> >
> >
> > Yeah, although with the caution that the reason a shop would charge an
> > arm and a leg is due to the sheer PITA factor.
> >
> >>
> >> Any tips appreciated,
> >
> >
> > If you have the auto temp control system, and ever see "Er" on the
> > display note the numbers.
> >
> > You can completely run the ATC system thru every control from the
> > panel, but first pull any stored fault codes:
> >
> > Press A/C and RECIRC and hold. Rotate control **** one click
> > clockwise. This should light all indicators and segments on the
> > display.
> >
> > Then release the A/C and RECIRC button, which should show test 00
> > on the display.
> >
> > Then push ONE OF either A/C or RECIRC which should show a little
> > stick figure. Any number other than 00 at this point should be
> > recorded. You really don't want to see a 25 or 29, $$$.
> >
> >
> >

 

try behind the glovebox can't miss it but it's for high speed only

PoBoy wrote:

> My mechanic just called, he says that the blower relay, which
> supposed to be under the dash isn't where it should be.
>
> He suspects that it may have been put under the dash in some
> previous repair. I bought it in 2000 and this dealer is the only
> guy who has worked on it . The vehicle itself is in great shape
> but who's to say.
>
> Could it be that the relay is in a different location, they have
> all the manuals etc so i dont see how they could miss it.
>
> PoBoy wrote:
> > Thanks to all on tips about my (non)heated seat.
> >
> > My other problem, ( i had this happen about a week ago, after i came out
> > of the car wash )
> >
> > I parked my truck, turn it off, heater fan stop ( normal ), then the
> > blower comes on -- and continues to run after removing key!!
> >
> > This morning, I am standing in my garage and I hear the blower come on
> > and run by itself.
> >
> > I looked on alldata, under blower and did some searching, could this be
> > the blower motor resistor, or blower motor relay?
> >
> > Something I could do my self?
> >
> > Any tips appreciated,
> >
> > James

 

try behind the glovebox can't miss it but it's for high speed only

PoBoy wrote:

> My mechanic just called, he says that the blower relay, which
> supposed to be under the dash isn't where it should be.
>
> He suspects that it may have been put under the dash in some
> previous repair. I bought it in 2000 and this dealer is the only
> guy who has worked on it . The vehicle itself is in great shape
> but who's to say.
>
> Could it be that the relay is in a different location, they have
> all the manuals etc so i dont see how they could miss it.
>
> PoBoy wrote:
> > Thanks to all on tips about my (non)heated seat.
> >
> > My other problem, ( i had this happen about a week ago, after i came out
> > of the car wash )
> >
> > I parked my truck, turn it off, heater fan stop ( normal ), then the
> > blower comes on -- and continues to run after removing key!!
> >
> > This morning, I am standing in my garage and I hear the blower come on
> > and run by itself.
> >
> > I looked on alldata, under blower and did some searching, could this be
> > the blower motor resistor, or blower motor relay?
> >
> > Something I could do my self?
> >
> > Any tips appreciated,
> >
> > James

 

try behind the glovebox can't miss it but it's for high speed only

PoBoy wrote:

> My mechanic just called, he says that the blower relay, which
> supposed to be under the dash isn't where it should be.
>
> He suspects that it may have been put under the dash in some
> previous repair. I bought it in 2000 and this dealer is the only
> guy who has worked on it . The vehicle itself is in great shape
> but who's to say.
>
> Could it be that the relay is in a different location, they have
> all the manuals etc so i dont see how they could miss it.
>
> PoBoy wrote:
> > Thanks to all on tips about my (non)heated seat.
> >
> > My other problem, ( i had this happen about a week ago, after i came out
> > of the car wash )
> >
> > I parked my truck, turn it off, heater fan stop ( normal ), then the
> > blower comes on -- and continues to run after removing key!!
> >
> > This morning, I am standing in my garage and I hear the blower come on
> > and run by itself.
> >
> > I looked on alldata, under blower and did some searching, could this be
> > the blower motor resistor, or blower motor relay?
> >
> > Something I could do my self?
> >
> > Any tips appreciated,
> >
> > James