1968-1969 Ford and Mercury - No power on accessory

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No power on accessory

Printed From: The Ford Torino Page
Category: Model Specific Forum
Forum Name: 1968-1969 Ford and Mercury
Forum Description: Technical discussion for 1968-1969 Ford and Mercury
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=19472
Printed Date: 28-November-2023 at 4:22AM
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: No power on accessory

Posted By: piper62j
Subject: No power on accessory
Date Posted: 21-April-2021 at 11:24AM

1968 Torino GT. When turning the ignition key to accessory, the radio will not work... Radio works when turning the ignition key to on... I tested the ignition switch and there is continuity to the accessory terminal when activated but no power to the radio when the harness is plugged in.

Any ideas anyone?

Replies:

Posted By: Rockatansky
Date Posted: 21-April-2021 at 11:59AM

fusible link at the solenoid blown?

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72 GT Ute

Posted By: piper62j
Date Posted: 25-April-2021 at 12:34AM

There is accessory power with the ignition key on, so I believe the fusible link is ok.. There is no accessory power with the key turned left to accessory..

Posted By: 72FordGTS
Date Posted: 25-April-2021 at 4:34AM

Do you have a wiring diagram for your car? It might come down to tracing the circuit. Do all other things that receive power on accessory mode get power ok?

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Vince

1972 Ford GTS Sportsroof - Survivor, One Family car

GTS.org Admin

Posted By: piper62j
Date Posted: 25-April-2021 at 4:05PM

Yes.. All other items on the accessory circuit receive power when turning the key to the right, or "on".

Posted By: 72 RS 351
Date Posted: 25-April-2021 at 11:54PM

I would guess the ignition switch is bad, did it occur all at once or intermittently?

There were some defective factory ignition switches in the late 80's. One example is all the 84-89 Mark VII's should have those replaced. One evidence of those going bad was the two halves of the ignition switch coming apart, a gap showing. That's a critical part of every car, I wouldn't hesitate to replace that at its age.

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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W
73 Ranchero GT 351C-4V &4R70W for sale later.
92 Lincoln Mark VII SE GTC, OBDII 347/4R70W