Have an 98 Grand Cherokee
The a/c clutch solenoid is staying engaged and running down my battery.
Does any one know if this is a ground seeking or power seeking circuit to
activate the solenoid.
I know a lead comes from the powertrain control module to the a/c compressor
clutch relay, but don't have a diagram or schematic to follow.
Is there a way to test the powertrain control module.

thanks for any help



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Tact is the ability to describe others as they see themselves

 

Have you tested the connection at the clutch plug for power? I just
can't see, the ignition switch, A/C position switch, and low pressure
switch, all have to be closed at the same time. Unbelievable
coincidence.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

JEEPR wrote:
>
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.
>
> thanks for any help
>
> 0|||||||0
> Tact is the ability to describe others as they see themselves

 

Have you tested the connection at the clutch plug for power? I just
can't see, the ignition switch, A/C position switch, and low pressure
switch, all have to be closed at the same time. Unbelievable
coincidence.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

JEEPR wrote:
>
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.
>
> thanks for any help
>
> 0|||||||0
> Tact is the ability to describe others as they see themselves

 

Have you tested the connection at the clutch plug for power? I just
can't see, the ignition switch, A/C position switch, and low pressure
switch, all have to be closed at the same time. Unbelievable
coincidence.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

JEEPR wrote:
>
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.
>
> thanks for any help
>
> 0|||||||0
> Tact is the ability to describe others as they see themselves

 

Have you tested the connection at the clutch plug for power? I just
can't see, the ignition switch, A/C position switch, and low pressure
switch, all have to be closed at the same time. Unbelievable
coincidence.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

JEEPR wrote:
>
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.
>
> thanks for any help
>
> 0|||||||0
> Tact is the ability to describe others as they see themselves

 

JEEPR did pass the time by typing:
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.

Should be the same as my 93ZJ
http://revbeergoggles.com/temp/zj-59.jpg

Pull the relay. If the clutch is still engaged then
it's dead. The clutch can be replaced without having to
disconnect the compressor.

--
DougW

 

JEEPR did pass the time by typing:
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.

Should be the same as my 93ZJ
http://revbeergoggles.com/temp/zj-59.jpg

Pull the relay. If the clutch is still engaged then
it's dead. The clutch can be replaced without having to
disconnect the compressor.

--
DougW

 

JEEPR did pass the time by typing:
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.

Should be the same as my 93ZJ
http://revbeergoggles.com/temp/zj-59.jpg

Pull the relay. If the clutch is still engaged then
it's dead. The clutch can be replaced without having to
disconnect the compressor.

--
DougW

 

JEEPR did pass the time by typing:
> Have an 98 Grand Cherokee
> The a/c clutch solenoid is staying engaged and running down my battery.
> Does any one know if this is a ground seeking or power seeking circuit to
> activate the solenoid.
> I know a lead comes from the powertrain control module to the a/c compressor
> clutch relay, but don't have a diagram or schematic to follow.
> Is there a way to test the powertrain control module.

Should be the same as my 93ZJ
http://revbeergoggles.com/temp/zj-59.jpg

Pull the relay. If the clutch is still engaged then
it's dead. The clutch can be replaced without having to
disconnect the compressor.

--
DougW

 

When I pull the relay the solenoid de-energizes.
I'm thinking there is a short somewhere or chaffed wire, supplying maybe a
ground for the solenoid to energize.


0|||||||0
Tact is the ability to describe others as they see themselves


"DougW" <post.replies@invalid.address> wrote in message
news:JhRfe.8127$Ri4.4760@okepread07...
> JEEPR did pass the time by typing:
> > Have an 98 Grand Cherokee
> > The a/c clutch solenoid is staying engaged and running down my battery.
> > Does any one know if this is a ground seeking or power seeking circuit
to
> > activate the solenoid.
> > I know a lead comes from the powertrain control module to the a/c
compressor
> > clutch relay, but don't have a diagram or schematic to follow.
> > Is there a way to test the powertrain control module.
>
> Should be the same as my 93ZJ
> http://revbeergoggles.com/temp/zj-59.jpg
>
> Pull the relay. If the clutch is still engaged then
> it's dead. The clutch can be replaced without having to
> disconnect the compressor.
>
> --
> DougW
>
>