power up {electrical}

[22dog22]

getting ready to fire up the rebuilt 318, just put a new battery in car, have gone thu the electrical system, did the MAD electrical up grade, installed electroinc voltage reg. and up graded the wiring for an 100 amp alternator, this is a long way from the way I bought this car, upon powering up the car, the fuse for the instr. lites keeps blown when I try the dash lites, have headlites { install the relay wiring kit} have front parking lites have brake lites but no rear parking lites or turn signals, the dome lite works and the horn works , have not tried to crank the engine at this time any toughts as to where to start trouble shooting ? checked for a pinched wire under the dash but do not see any ! oh by the way it is a 69 cuda.!!

 

[AJ/FormS]

As to the no rear lites; Do the brake lites work?
If no, and all the fuses are good, I would remove the drivers kick-panel and make sure the body connector behind there is fully plugged in. If it is then check the sockets for juice. If juice is there fix the ground back there. But if no juice at the sockets, go back to the body plug and check there. If none, back up to the fusebox; check both sides of the fuse holder.( Those fuse holders have been known to cause trouble. You may have to clean the clips.)If no power there back up to the light switch.
The light sw is most likely the cause of both problems, so I would just go there first.

 

[67Dart273]

In addition to the above

DASH. Understand how they work. The inst. lamp fuse IS THE ONLY fuse that is fed from "another" fuse and is downstream from a switch

The tail / park light circuit fuse supplies power to the headlight dash dimmer, so that circuit must work

Power goes through the dimmer control which must be rotated to the left

A light brown / tan wire carries dash power from the dimmer down to the inst. fuse, through the fuse, and THEN out to all dash lights on ORANGE wires. Options determine what all, IE console or column shift indicator, etc etc.

Tail, stop, turn.

The same two wires for brake lights power the left / right turn filaments, so if you have brake lights AND IF it's properly wired, in theory the turn should work. Check the wiring to / from the TS switch, make certain the 4X switch is not damaged or bumped partially "on." And as above, check the kick panel connector.

The brake light switch feeds INTO the TS switch, which selects which side to power, and then feeds back to the lamps.

Tail circuit is one wire coming from the light switch, same feed as the parking lamps---EXCEPT than (I think) in 69 the park / tail were separate off the light switch. That is, the park lights (I think) do not 'stay on' with headlights until ? 70 ?.

All Ma did to change that was to move one wire--the park light feed wire--- from the park contact on the switch to the tail contact.

 

[22dog22]

Hi thanks for the information I will check out all.
dave