ACC> Position Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TobyArnot · 11-14-2011, 12:26 PM

O.k. Where should I connect the (+) power lead from my radio, so that it will play in the "ACC" position???

48richard · 11-14-2011, 12:39 PM

The radio connector is pretty much right in the center of the fuse block, right above the fuse marker radio. That will work on ACC.

TobyArnot · 11-14-2011, 03:16 PM

I have that connected, but it is not "hot" in the ACC position.
.
I installed a new starter switch and traced the wiring using the "colorized" diagrams. It appears there are (2) wires connected to the ACC term. on switch. One is a 12ga brown wire that goes to the fuseblock. The other is a 24ga. brown/white tracer that goes to the firewall connector. However, the "radio" term on the fuseblock is not "hot" in the ACC position.
.
What am I missing??

48richard · 11-14-2011, 06:52 PM

Does it work in the Run position? The only feed to the radio (as well as the wipers, heater and a few others) should be that 12 g brown wire, so they should work in both the Acc and Run positions, or not at all. How about the wipers and heater?

TobyArnot · 11-14-2011, 08:48 PM

Quote:

Originally Posted by 48richard

Does it work in the Run position? The only feed to the radio (as well as the wipers, heater and a few others) should be that 12 g brown wire, so they should work in both the Acc and Run positions, or not at all. How about the wipers and heater?

I hear you. Everything works in the "RUN" position, just nothing in the "ACC" mode. Could there be something wrong (backside of fuse-block)?

TobyArnot · 11-15-2011, 08:16 AM

ANYONE??
tt

**oldgold70c10** · 11-15-2011, 10:48 PM

What kind of starter switch did you use? New new, or new to you? I ask because 67 models did not have an accessory position.

**LockDoc** · 11-15-2011, 10:52 PM

-
What year is your truck? Like OldGold said If it is a '67 or early '68 it doesn't have an accessory position on the switch. If the switch has been replaced with a newer switch the wire loom probably doesn't have the wires for it.

LockDoc

TobyArnot · 11-16-2011, 08:54 AM

Thanks Lockdoc,

Truck is a '70. New Borg-Warner switch. Harness has two (noted) wires on the ACC term. One is a 12ga brown wire that goes to the fuseblock. The other is a 24ga. brown/white tracer that goes to the firewall connector. This weekend I'm going to pull switch out of dash, re-connect the connector, let it hang down and start tracing wiring circuits. Wiring is there, switch is new, something strange is occuring. I've been studying the 'colorized" wiring diagrahms and I'm not exactly sure how the "radio" term gets it's 12 v. feed.
.
Admittedly this is not a major issue and I have some other "higher priority" projects on the table, but I will keep after it until it's resolved.

11-14-2011, 12:26 PM	#1
TobyArnot Quit if it's not FUN!!! Join Date: Jul 2010 Location: Indian Trail, N.C, Posts: 864	ACC> Position Question O.k. Where should I connect the (+) power lead from my radio, so that it will play in the "ACC" position???

11-14-2011, 12:39 PM	#2
48richard Registered User Join Date: Oct 2009 Location: Phoenix, AZ Posts: 475	Re: ACC> Position Question The radio connector is pretty much right in the center of the fuse block, right above the fuse marker radio. That will work on ACC. __________________ 1971 C10 Longbed, 350/TH350

11-14-2011, 03:16 PM	#3
TobyArnot Quit if it's not FUN!!! Join Date: Jul 2010 Location: Indian Trail, N.C, Posts: 864	Re: ACC. Position Question I have that connected, but it is not "hot" in the ACC position. . I installed a new starter switch and traced the wiring using the "colorized" diagrams. It appears there are (2) wires connected to the ACC term. on switch. One is a 12ga brown wire that goes to the fuseblock. The other is a 24ga. brown/white tracer that goes to the firewall connector. However, the "radio" term on the fuseblock is not "hot" in the ACC position. . What am I missing?? Last edited by TobyArnot; 11-14-2011 at 05:04 PM.

11-14-2011, 06:52 PM	#4
48richard Registered User Join Date: Oct 2009 Location: Phoenix, AZ Posts: 475	Re: ACC> Position Question Does it work in the Run position? The only feed to the radio (as well as the wipers, heater and a few others) should be that 12 g brown wire, so they should work in both the Acc and Run positions, or not at all. How about the wipers and heater? __________________ 1971 C10 Longbed, 350/TH350

11-15-2011, 08:16 AM	#6
TobyArnot Quit if it's not FUN!!! Join Date: Jul 2010 Location: Indian Trail, N.C, Posts: 864	Re: ACC> Position Question ANYONE?? tt

11-15-2011, 10:48 PM	#7
oldgold70c10 Who's got steelies? Join Date: Feb 2006 Location: Morrison, Oklahoma Posts: 1,025	Re: ACC> Position Question What kind of starter switch did you use? New new, or new to you? I ask because 67 models did not have an accessory position. __________________ 1969 C10 LWB W/ 250 I6 & 3spd 1970 C10 with '67 small window cab, 68 front end, blue; 305/TH350, 3.08 limited slip rear end, manual brakes, power steering; & 4-wheel drums-My daily driver. 1975 Chevelle Malibu Classic Coupe 350/th350 mint green 1970 C20 Suburban 350/700R4 4.10 gearing green & white 1978 Big 10 Silverado 350/th350, working ac, 2 tone blue-My summer daily driver 1983 GMC 1500 Sierra 305/SM465 2.73 rear end How to add a trip odometer to your 67-72 stock speedometer How to rebuild your Q-Jet My Truck Page My Youtube Channel

11-15-2011, 10:52 PM	#8
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,772	Re: ACC> Position Question - What year is your truck? Like OldGold said If it is a '67 or early '68 it doesn't have an accessory position on the switch. If the switch has been replaced with a newer switch the wire loom probably doesn't have the wires for it. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

11-16-2011, 08:54 AM	#9
TobyArnot Quit if it's not FUN!!! Join Date: Jul 2010 Location: Indian Trail, N.C, Posts: 864	Re: ACC> Position Question Thanks Lockdoc, Truck is a '70. New Borg-Warner switch. Harness has two (noted) wires on the ACC term. One is a 12ga brown wire that goes to the fuseblock. The other is a 24ga. brown/white tracer that goes to the firewall connector. This weekend I'm going to pull switch out of dash, re-connect the connector, let it hang down and start tracing wiring circuits. Wiring is there, switch is new, something strange is occuring. I've been studying the 'colorized" wiring diagrahms and I'm not exactly sure how the "radio" term gets it's 12 v. feed. . Admittedly this is not a major issue and I have some other "higher priority" projects on the table, but I will keep after it until it's resolved.

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