gwengler@parkprop.com

I have a weird electrical problem on my 91 Cherokee. Here are the
symptoms: Daylight Running Lights not coming on (Canadian model);
right signal indicator in panel (the green arrow) stays on but only if
the normal headlights are on; right yellow light below headlights does
not come on when headlight are on but flashes when activated as signal.
Everything else is totally normal. We changed the Daylight Running
Light modul to no effect. Any idea?

Gerd (428,000 km, 266,000 mi)

Mike Romain

I would start with the bulb that doesn't turn on. They have a tendency
to have the glass fall out and short the socket causing strange symptoms
like you describe. They are dual element bulbs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

gwengler@parkprop.com wrote:
>
> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)

Mike Romain

I would start with the bulb that doesn't turn on. They have a tendency
to have the glass fall out and short the socket causing strange symptoms
like you describe. They are dual element bulbs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

gwengler@parkprop.com wrote:
>
> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)

Mike Romain

I would start with the bulb that doesn't turn on. They have a tendency
to have the glass fall out and short the socket causing strange symptoms
like you describe. They are dual element bulbs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

gwengler@parkprop.com wrote:
>
> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)

Mike Romain

I would start with the bulb that doesn't turn on. They have a tendency
to have the glass fall out and short the socket causing strange symptoms
like you describe. They are dual element bulbs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

gwengler@parkprop.com wrote:
>
> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)

philthy

remove the airbox and under is a 10 pin connector check it for corrosion
they also had some problem with the turnsignal sockets in that gen.

gwengler@parkprop.com wrote:

> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)

philthy

remove the airbox and under is a 10 pin connector check it for corrosion
they also had some problem with the turnsignal sockets in that gen.

gwengler@parkprop.com wrote:

> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)

philthy

remove the airbox and under is a 10 pin connector check it for corrosion
they also had some problem with the turnsignal sockets in that gen.

gwengler@parkprop.com wrote:

> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)

philthy

remove the airbox and under is a 10 pin connector check it for corrosion
they also had some problem with the turnsignal sockets in that gen.

gwengler@parkprop.com wrote:

> I have a weird electrical problem on my 91 Cherokee. Here are the
> symptoms: Daylight Running Lights not coming on (Canadian model);
> right signal indicator in panel (the green arrow) stays on but only if
> the normal headlights are on; right yellow light below headlights does
> not come on when headlight are on but flashes when activated as signal.
> Everything else is totally normal. We changed the Daylight Running
> Light modul to no effect. Any idea?
>
> Gerd (428,000 km, 266,000 mi)