hello my light delay stopped working awhile back and i forgot how it works..thee yellow wires connect on a 3 way connector from light bar and steering column...gave them 12v with a power probe and both bulbs are good...is there anyway to test relay..does it work as a ground...if so ,is there supposed constant 12v somewhere...any help input would be apprecitated,,,tia..

Maybe this will help.

thanks snoopy ,,yeh i see im missing the time delay ground ...also wondering where does M15-18p goes..thanks again

While were on the subject

Anyone have the wiring diagram like posted for a 1971 Charger Superbee A01 Light Package - All the books and wiring diagrams i have , nothing

Trying to figure out my Ignition Key Lamp
Yellow wire thru steering column not connected to anything

Thanx Scott

M5-18P goes to fuseblock by way of:
Rallye - cigar lighter & clock
Standard - cigar lighter

M15-18P? Is that M5-18P referenced on that wiring diagram? If so, that should be the unswitched (constant 12v) accessory power tap coming of the main dash harness, and should be fuse protected at the box. Should be a red colored flat three position female bullet type connector on a pink wire. How does the time delay relay work? The relay needs constant 12v on the pink wire (X1A-18P), when grounded on M6-18Y*(via the left door dome lamp switch) you should have 12v out on J5-18Y, to illuminate the ignition switch, for a minute or two then go out.
There is a bi-metal spring contact that is heated up to provide continuity to the light, even after the ground is removed (door closes) it takes some time for the spring contact to cool down and open the circuit. Sometimes the relays can be easily repaired if inop. Carefully remove the cover check and clean the contacts. If the heating coil is open, may have to find another relay.

bee1971, the relay/key lamp system had a separate wiring harness on the b-bodies, and with the relay itself was taped to the dash harness close to the ignition/turn signal connectors. If the relay and harness is present there should be a corresponding single connector on a yellow wire for the lamp lead.
From the 72' FSM

thanks again for input...i got it...it was door switches...they have two terminals so although they were turning on dome lite the other terminal wasnt grounding,,i just cleaned them and bingo ,,started working,,,if they act up again ill just get new door switches...

Thanx man

I will look into the seperate wiring harness/relay and see if its there

If its not , i am sure that would bee fun to find

Thanx Scott

I found this picture that may help identify components/connections.

Doug,
What year and model is that?

72’ Plymouth b-body , I assume the e-bodies were laid out in a similar fashion but not certain.

Thanks, I just wanted to label the picture for further reference.

Another angle, it should be noted, if not obvious, this is a non-rallye dash (pretty clean 72’ Satellite Sebring donor car). This dash harness was later converted to support a rallye dash and is currently in operation in my RR/GTX.

2889565 time delay relay.
I might have a spare, I'll take a look this weekend.