Deitz Clearance Lights

71PA_Highboy · Post by **71PA_Highboy** » Wed Jan 31, 2007 9:18 am

OK... I was sitting in the truck in the snow yesterday, and I was playing with the instrument light dimmer (OK... First time was an accident, I was reaching for the wipers).

As I dimmed the lights, I notice the clearance lights on the roof of the cab dimmed....

Now, everything I have seen/read says the clearance lights are supposed to be powered via a relay in the passengers side door post...

Did somone mis-wire my lights or is there another explanation?

TIA,

Eric

bluef250 · Post by **bluef250** » Wed Jan 31, 2007 10:20 am

I think you need to investigate the wiring and let us know what you find. Sound like in the past life of your truck someone wire the clearance lights to the dimmer. As far as I know, the hazard lights and other exterior sides should not be affected by dimming the interior lights.

bluef250 · Post by **bluef250** » Wed Jan 31, 2007 11:50 am

After further consideration, you may want to replace the light switch. The clearance lights should stay bright when the dash lights are dimmed. May be something amiss in the switch.

ICEMAN6166 · Post by **ICEMAN6166** » Wed Jan 31, 2007 2:27 pm

i would take a wild guess that the relay is no good and a previous owner wired them up to the instrument terminal on the headlight switch or one of the unused blue wires under the dash that shows power when the lights are on.

bluef250 · Post by **bluef250** » Wed Jan 31, 2007 2:51 pm

Actually, the 1968 F250 wiring diagram shows the cab clearance lights fed directly from the headlight switch on wire 285.?? What was installed in each truck, well. . . And the Camper Specials may be been different. Then the dealer may have added the lights. The F350 and larger truck wiring diagrams show a relay. The condition described seems to indicate the rheostat is feeding the clearance lights. That might be possible if the headlight switch has been internally damaged.

71PA_Highboy · Post by **71PA_Highboy** » Wed Jan 31, 2007 3:32 pm

OK...

The switch CANNOT cause this issue however wiring can.

The question was (or should have been): are the clearance lights supposed to be relay fed, regardless of how they are currently wired?

I know I don't ask questions well, so for those that have answered, thanks for your input.

Anyone know for sure since wiring diagrams for 71 aren't available on the site?

My truck is a 71, F250, 4x4 Base model, 360, 4 speed.

Thanks all!

Eric

fordman · Post by **fordman** » Wed Jan 31, 2007 4:00 pm

so far all of the other diagrams i looked at said there is a circut breaker just for those ligth alone. i have not seen any metion of a relay in the 69 or 70 roof marker lights. http://www.fordification.com/images/sch ... arkers.jpg

71PA_Highboy · Post by **71PA_Highboy** » Wed Jan 31, 2007 4:05 pm

Uhh... that diagram specifically calls out a Relay and a Circuit breaker...

I am confused.

Eric

fordman · Post by **fordman** » Wed Jan 31, 2007 4:09 pm

which relay ? the starter relay? thats the only one i see.

71PA_Highboy · Post by **71PA_Highboy** » Wed Jan 31, 2007 4:14 pm

passengers side door post and in the schematic upper right corner (midddle of the diagram)

Marker Lamp Relay
25 Amp Circuit Breaker

eric

fordman · Post by **fordman** » Wed Jan 31, 2007 4:16 pm

yea i misssed that i guess it does look pretty simple though. maybe the breaker is getting weak. or maybe someone has rewiried it differently.

The FORDification.com Forums

Deitz Clearance Lights

Deitz Clearance Lights

re: Deitz Clearance Lights

re: Deitz Clearance Lights

re: Deitz Clearance Lights

re: Deitz Clearance Lights

re: Deitz Clearance Lights