I have an 87 Cherokee and am having quite a bit of difficulty to track
down a problem with my headlamps. Currently, the headlights, stop
lights, parking lights, dashboard lights, hazard flasher and dome light
do not operate (the turn signals are working).

I got out a multimeter and have checked the fuse panel. None of the
fuses are blown. However, there is no power (12V) on either side of
these fuses. In addition, if I remove the fuse, the hot side of the
fuse (side that should be connected to the battery), is a dead short to
ground.

Any suggestions where to start looking next or a possible cause for this
?? I am considering the headlight switch. Wish I had a good schematic
for the electrical system!

Thanks in advance for any advice,
Seth Hubbard

 

It should/could be a bad fusible link, if so equipped, near the battery.
Should be red or green as per my diagram, but it also claims the fusible
links are AFTER the starter relay NOT the starter solenoid. I have a 1988
XJ wiring diagram on a pdf file.
It is time to probe for the electrical shortage starting with all of the
positive wires from the battery and going to the headlight switch.

just some ideas!
later and good luck,
dave AKA vwdoc1

"Seth Hubbard" <hubbards@umich.edu> wrote in message
news:4043D37B.9020009@umich.edu...
> I have an 87 Cherokee and am having quite a bit of difficulty to track
> down a problem with my headlamps. Currently, the headlights, stop
> lights, parking lights, dashboard lights, hazard flasher and dome light
> do not operate (the turn signals are working).
>
> I got out a multimeter and have checked the fuse panel. None of the
> fuses are blown. However, there is no power (12V) on either side of
> these fuses. In addition, if I remove the fuse, the hot side of the
> fuse (side that should be connected to the battery), is a dead short to
> ground.
>
> Any suggestions where to start looking next or a possible cause for this
> ?? I am considering the headlight switch. Wish I had a good schematic
> for the electrical system!
>
> Thanks in advance for any advice,
> Seth Hubbard
>

 

It should/could be a bad fusible link, if so equipped, near the battery.
Should be red or green as per my diagram, but it also claims the fusible
links are AFTER the starter relay NOT the starter solenoid. I have a 1988
XJ wiring diagram on a pdf file.
It is time to probe for the electrical shortage starting with all of the
positive wires from the battery and going to the headlight switch.

just some ideas!
later and good luck,
dave AKA vwdoc1

"Seth Hubbard" <hubbards@umich.edu> wrote in message
news:4043D37B.9020009@umich.edu...
> I have an 87 Cherokee and am having quite a bit of difficulty to track
> down a problem with my headlamps. Currently, the headlights, stop
> lights, parking lights, dashboard lights, hazard flasher and dome light
> do not operate (the turn signals are working).
>
> I got out a multimeter and have checked the fuse panel. None of the
> fuses are blown. However, there is no power (12V) on either side of
> these fuses. In addition, if I remove the fuse, the hot side of the
> fuse (side that should be connected to the battery), is a dead short to
> ground.
>
> Any suggestions where to start looking next or a possible cause for this
> ?? I am considering the headlight switch. Wish I had a good schematic
> for the electrical system!
>
> Thanks in advance for any advice,
> Seth Hubbard
>

 

It should/could be a bad fusible link, if so equipped, near the battery.
Should be red or green as per my diagram, but it also claims the fusible
links are AFTER the starter relay NOT the starter solenoid. I have a 1988
XJ wiring diagram on a pdf file.
It is time to probe for the electrical shortage starting with all of the
positive wires from the battery and going to the headlight switch.

just some ideas!
later and good luck,
dave AKA vwdoc1

"Seth Hubbard" <hubbards@umich.edu> wrote in message
news:4043D37B.9020009@umich.edu...
> I have an 87 Cherokee and am having quite a bit of difficulty to track
> down a problem with my headlamps. Currently, the headlights, stop
> lights, parking lights, dashboard lights, hazard flasher and dome light
> do not operate (the turn signals are working).
>
> I got out a multimeter and have checked the fuse panel. None of the
> fuses are blown. However, there is no power (12V) on either side of
> these fuses. In addition, if I remove the fuse, the hot side of the
> fuse (side that should be connected to the battery), is a dead short to
> ground.
>
> Any suggestions where to start looking next or a possible cause for this
> ?? I am considering the headlight switch. Wish I had a good schematic
> for the electrical system!
>
> Thanks in advance for any advice,
> Seth Hubbard
>

 

Seth Hubbard did pass the time by typing:
> I have an 87 Cherokee and am having quite a bit of difficulty to track
> down a problem with my headlamps. Currently, the headlights, stop
> lights, parking lights, dashboard lights, hazard flasher and dome light
> do not operate (the turn signals are working).
>
> I got out a multimeter and have checked the fuse panel. None of the
> fuses are blown. However, there is no power (12V) on either side of
> these fuses. In addition, if I remove the fuse, the hot side of the
> fuse (side that should be connected to the battery), is a dead short to
> ground.
>
> Any suggestions where to start looking next or a possible cause for this
> ?? I am considering the headlight switch. Wish I had a good schematic
> for the electrical system!

Only to start at the battery and work toward the bulbs.

Battery -> headlamp switch (internal breaker) -> headlamps

My "guess" is your headlight switch has bit the farm.

--
DougW

 

Seth Hubbard did pass the time by typing:
> I have an 87 Cherokee and am having quite a bit of difficulty to track
> down a problem with my headlamps. Currently, the headlights, stop
> lights, parking lights, dashboard lights, hazard flasher and dome light
> do not operate (the turn signals are working).
>
> I got out a multimeter and have checked the fuse panel. None of the
> fuses are blown. However, there is no power (12V) on either side of
> these fuses. In addition, if I remove the fuse, the hot side of the
> fuse (side that should be connected to the battery), is a dead short to
> ground.
>
> Any suggestions where to start looking next or a possible cause for this
> ?? I am considering the headlight switch. Wish I had a good schematic
> for the electrical system!

Only to start at the battery and work toward the bulbs.

Battery -> headlamp switch (internal breaker) -> headlamps

My "guess" is your headlight switch has bit the farm.

--
DougW

 

Seth Hubbard did pass the time by typing:
> I have an 87 Cherokee and am having quite a bit of difficulty to track
> down a problem with my headlamps. Currently, the headlights, stop
> lights, parking lights, dashboard lights, hazard flasher and dome light
> do not operate (the turn signals are working).
>
> I got out a multimeter and have checked the fuse panel. None of the
> fuses are blown. However, there is no power (12V) on either side of
> these fuses. In addition, if I remove the fuse, the hot side of the
> fuse (side that should be connected to the battery), is a dead short to
> ground.
>
> Any suggestions where to start looking next or a possible cause for this
> ?? I am considering the headlight switch. Wish I had a good schematic
> for the electrical system!

Only to start at the battery and work toward the bulbs.

Battery -> headlamp switch (internal breaker) -> headlamps

My "guess" is your headlight switch has bit the farm.

--
DougW

 

Dave

Thanks! Could you send me an e-copy of the pdf? The 88 diagram should
be similar to 87, and at least it give me something to work from.

Seth

dave AKA vwdoc1 wrote:
> It should/could be a bad fusible link, if so equipped, near the battery.
> Should be red or green as per my diagram, but it also claims the fusible
> links are AFTER the starter relay NOT the starter solenoid. I have a 1988
> XJ wiring diagram on a pdf file.
> It is time to probe for the electrical shortage starting with all of the
> positive wires from the battery and going to the headlight switch.
>
> just some ideas!
> later and good luck,
> dave AKA vwdoc1
>
> "Seth Hubbard" <hubbards@umich.edu> wrote in message
> news:4043D37B.9020009@umich.edu...
>
>>I have an 87 Cherokee and am having quite a bit of difficulty to track
>>down a problem with my headlamps. Currently, the headlights, stop
>>lights, parking lights, dashboard lights, hazard flasher and dome light
>>do not operate (the turn signals are working).
>>
>>I got out a multimeter and have checked the fuse panel. None of the
>>fuses are blown. However, there is no power (12V) on either side of
>>these fuses. In addition, if I remove the fuse, the hot side of the
>>fuse (side that should be connected to the battery), is a dead short to
>>ground.
>>
>>Any suggestions where to start looking next or a possible cause for this
>>?? I am considering the headlight switch. Wish I had a good schematic
>>for the electrical system!
>>
>>Thanks in advance for any advice,
>>Seth Hubbard
>>
>
>
>

 

Dave

Thanks! Could you send me an e-copy of the pdf? The 88 diagram should
be similar to 87, and at least it give me something to work from.

Seth

dave AKA vwdoc1 wrote:
> It should/could be a bad fusible link, if so equipped, near the battery.
> Should be red or green as per my diagram, but it also claims the fusible
> links are AFTER the starter relay NOT the starter solenoid. I have a 1988
> XJ wiring diagram on a pdf file.
> It is time to probe for the electrical shortage starting with all of the
> positive wires from the battery and going to the headlight switch.
>
> just some ideas!
> later and good luck,
> dave AKA vwdoc1
>
> "Seth Hubbard" <hubbards@umich.edu> wrote in message
> news:4043D37B.9020009@umich.edu...
>
>>I have an 87 Cherokee and am having quite a bit of difficulty to track
>>down a problem with my headlamps. Currently, the headlights, stop
>>lights, parking lights, dashboard lights, hazard flasher and dome light
>>do not operate (the turn signals are working).
>>
>>I got out a multimeter and have checked the fuse panel. None of the
>>fuses are blown. However, there is no power (12V) on either side of
>>these fuses. In addition, if I remove the fuse, the hot side of the
>>fuse (side that should be connected to the battery), is a dead short to
>>ground.
>>
>>Any suggestions where to start looking next or a possible cause for this
>>?? I am considering the headlight switch. Wish I had a good schematic
>>for the electrical system!
>>
>>Thanks in advance for any advice,
>>Seth Hubbard
>>
>
>
>

 

Dave

Thanks! Could you send me an e-copy of the pdf? The 88 diagram should
be similar to 87, and at least it give me something to work from.

Seth

dave AKA vwdoc1 wrote:
> It should/could be a bad fusible link, if so equipped, near the battery.
> Should be red or green as per my diagram, but it also claims the fusible
> links are AFTER the starter relay NOT the starter solenoid. I have a 1988
> XJ wiring diagram on a pdf file.
> It is time to probe for the electrical shortage starting with all of the
> positive wires from the battery and going to the headlight switch.
>
> just some ideas!
> later and good luck,
> dave AKA vwdoc1
>
> "Seth Hubbard" <hubbards@umich.edu> wrote in message
> news:4043D37B.9020009@umich.edu...
>
>>I have an 87 Cherokee and am having quite a bit of difficulty to track
>>down a problem with my headlamps. Currently, the headlights, stop
>>lights, parking lights, dashboard lights, hazard flasher and dome light
>>do not operate (the turn signals are working).
>>
>>I got out a multimeter and have checked the fuse panel. None of the
>>fuses are blown. However, there is no power (12V) on either side of
>>these fuses. In addition, if I remove the fuse, the hot side of the
>>fuse (side that should be connected to the battery), is a dead short to
>>ground.
>>
>>Any suggestions where to start looking next or a possible cause for this
>>?? I am considering the headlight switch. Wish I had a good schematic
>>for the electrical system!
>>
>>Thanks in advance for any advice,
>>Seth Hubbard
>>
>
>
>