Electrical question
I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator". I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator". I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe
Rich, Look closely. Later Panteras have TWO identical rheostats, one for the minor gauges on that panel and one to the left of the steering column on the underside of the dash for the tach and speedo. If your car has the pre-L dash it won’t have the second one. Cheers! Mike Sent from my iPhone
On Jun 9, 2025, at 13:42, Rich Hoppe <richbhoppe@gmail.com> wrote:
I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator".
I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe _______________________________________________
Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com
To manage your subscription (change email address, unsubscribe, etc.) use the links above.
Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
Mike, I believe that info is a little misleading because all of the lights inside the gauges, not just the tach and speedo, are controlled with the under dash rheostat, while the one next to the headlight switch controls the two green flood lights under the dash and hanging over the gauges. Richard Austin, TX -----Original Message----- From: Mike Drew via DeTomaso <detomaso@server.detomasolist.com> Sent: Monday, June 9, 2025 4:46 PM To: Rich Hoppe <richbhoppe@gmail.com> Cc: detomaso@server.detomasolist.com Subject: [DeTomaso] Re: Electrical question Rich, Look closely. Later Panteras have TWO identical rheostats, one for the minor gauges on that panel and one to the left of the steering column on the underside of the dash for the tach and speedo. If your car has the pre-L dash it won’t have the second one. Cheers! Mike Sent from my iPhone
On Jun 9, 2025, at 13:42, Rich Hoppe <richbhoppe@gmail.com> wrote:
I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator".
I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe _______________________________________________
Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com
To manage your subscription (change email address, unsubscribe, etc.) use the links above.
Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
_______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
Richard, Right you are!!! I should have said the one on the right controls the green floodlights while the one on the left controls ALL the gauges. THANKS!!!! Mike Sent from my iPhone
On Jun 9, 2025, at 14:53, Richard Greenblum <richard@richardgreenblum.com> wrote:
Mike,
I believe that info is a little misleading because all of the lights inside the gauges, not just the tach and speedo, are controlled with the under dash rheostat, while the one next to the headlight switch controls the two green flood lights under the dash and hanging over the gauges.
Richard Austin, TX
-----Original Message----- From: Mike Drew via DeTomaso <detomaso@server.detomasolist.com> Sent: Monday, June 9, 2025 4:46 PM To: Rich Hoppe <richbhoppe@gmail.com> Cc: detomaso@server.detomasolist.com Subject: [DeTomaso] Re: Electrical question
Rich,
Look closely. Later Panteras have TWO identical rheostats, one for the minor gauges on that panel and one to the left of the steering column on the underside of the dash for the tach and speedo.
If your car has the pre-L dash it won’t have the second one.
Cheers!
Mike
Sent from my iPhone
On Jun 9, 2025, at 13:42, Rich Hoppe <richbhoppe@gmail.com> wrote:
I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator".
I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe _______________________________________________
Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com
To manage your subscription (change email address, unsubscribe, etc.) use the links above.
Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
_______________________________________________
Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com
To manage your subscription (change email address, unsubscribe, etc.) use the links above.
Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
_______________________________________________
Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com
To manage your subscription (change email address, unsubscribe, etc.) use the links above.
Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
I bought a 28" x 20" color wiring diagram a few year back. Its under glass on my office desktop. Its is very handy. In a message dated 6/9/2025 3:42:36 PM Central Daylight Time, richbhoppe@gmail.com writes: I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator". I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe_______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. I bought a 28" x 20" color wiring diagram a few year back. Its under glass on my office desktop. Its is very handy. In a message dated 6/9/2025 3:42:36 PM Central Daylight Time, richbhoppe@gmail.com writes: I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator". I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe _______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- [1]detomaso@server.detomasolist.com To unsubscribe send an email to [2]detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. References 1. mailto:detomaso@server.detomasolist.com 2. mailto:detomaso-leave@server.detomasolist.com
participants (4)
-
JOHN NEAL -
Mike Drew -
Rich Hoppe -
Richard Greenblum