ACC Ignition Key Position Issue

[samkost]

After reassembling my dash components, for some reason the left key accessory position on the ignition switch has decided to not power on.
What steps should I take to diagnose?

Could the culprit be the junky aftermarket ignition lock set and or the switch the restoration shop from Hell installed?

Might be time to order an OE set locks from LockDoc!

[Sheepdip]

Originally Posted by samkost

might be time to order an oe set locks from lockdoc!

^^^^^^^^^^^^^^^this^^^^^^^^^^^^^^^^^^^^

[toolboxchev]

1. You could have a short to ground in that circuit and the switch will have little to do with it.

2. Grit, left over from restoration.

3. If its a new switch get a warranty replacement on it. If the heater circuit is or has been working on high they have a tendency to burn up wiring. (not supposed to be this way.) Ask me how I know

Check all your wiring for burn marks or hot spots.

[samkost]

Originally Posted by toolboxchev

1. You could have a short to ground in that circuit and the switch will have little to do with it.

2. Grit, left over from restoration.

3. If its a new switch get a warranty replacement on it. If the heater circuit is or has been working on high they have a tendency to burn up wiring. (not supposed to be this way.) Ask me how I know

Check all your wiring for burn marks or hot spots.

I will tinker with a little checking/cleaning of the lock cylinder and wiring at the ignition switch.
I just buttoned up the new stereo, lights, wipers,heater fan and all the dash cluster functions. Everything works!
It just seems odd that I have no accessory power with the key.

I read that 1967 to early 68's C10's didn't have an accessory circuit at the key ignition? Unsure?
I wonder if I have the wrong ignition switch?
Thanks

[HO455]

Samkost is correct 1967 harnesses don't have wiring configured for the ACC switch position to work. A newer style switch with ACC will plug right in and work. In fact most parts catalogs only list one switch for 67-72 even though the 67 switch is different.

[LockDoc]

Originally Posted by samkost

I will tinker with a little checking/cleaning of the lock cylinder and wiring at the ignition switch.
I just buttoned up the new stereo, lights, wipers,heater fan and all the dash cluster functions. Everything works!
It just seems odd that I have no accessory power with the key.

I read that 1967 to early 68's C10's didn't have an accessory circuit at the key ignition? Unsure?
I wonder if I have the wrong ignition switch?
Thanks

Are you saying that the switch won't turn to the left far enough to activate the accessories or that it turns far enough but there is no power to the accessories in that position? What year is your truck?


LockDoc

[samkost]

Originally Posted by HO455

Samkost is correct 1967 harnesses don't have wiring configured for the ACC switch position to work. A newer style switch with ACC will plug right in and work. In fact most parts catalogs only list one switch for 67-72 even though the 67 switch is different.

Well the under dash wiring harness is the original and the old accessories ignition position was working before it went to the shop.
I also assumed the ignition parts were identical for all six years.
The only thing that changed was the ignition and door set locks (keyed the same) were installed.

Would an bad aftermarket ignition key plug and or faulty ignition switch cause this issue of no ACC power?
I need to get the multi tester out and start the process of elimination.
Thanks HO455

[MattyBs71]

Let's see a pic of the whole truck? I like it when issues are fixed by simple cleaning and putting back together! My favorite!

[samkost]

Multi year project Matty.
Next up, windshield with trim and interior/upholstery.
Getting closer though.
I could use more elbow room.
Baby steps and patience in my tiny garage.
It doesn't get out much of it's shoehorned parking spot.
Here ya go.
Sam

[Steeveedee]

Yowza, 'atsa nice! I want to get the dents beat out below the lower molding on my truck and get it painted white like original. But dents and I don't get along well. Kind of funny, because I do copper smithing. Of course, copper is way easier to work. My FiL had it repainted and the body shop painted that lower section Hugger Orange. I really like the white lower on a truck.

[MattyBs71]

Looks great Sam. I know all about multi year projects lol. My shortbed has been a "project" for at least 10 years now.