Wiring question

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Model T Ford Forum: Forum 2017: Wiring question
Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Addington on Thursday, March 09, 2017 - 09:28 pm:

With the battery removed, and the key OFF should my multi meter show any degree of continuity between the positive and negative battery cables?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Stephen, South Texas on Thursday, March 09, 2017 - 09:35 pm:

No. Otherwise your battery would go dead when connected.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Aaron Griffey, Hayward Ca. on Thursday, March 09, 2017 - 11:02 pm:

If you have radio with a memory or an alternator it will.
Or if the generator cutout is closed or the lights are on.


Top of pagePrevious messageNext messageBottom of page Link to this message  By James G Fisher III Peachtree City, GA on Friday, March 10, 2017 - 07:59 am:

There will be some resistance read if there are any bulbs in the vehicle.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ron Patterson-Nicholasville, Kentucky on Friday, March 10, 2017 - 10:33 am:

If it is a Model T and the key and light switch are OFF, there should be no place for continuity between the two battery cable ends.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ken Todd, ............Red Deer, Alberta on Friday, March 10, 2017 - 11:55 am:

Digital or analogue multimeter?
Ifn it's a digital meter, join the probes together and see what you read.
Ifn it's an analogue meter, connect the probes together and zero the meter first.


Top of pagePrevious messageNext messageBottom of page Link to this message  By John F. Regan on Monday, March 13, 2017 - 02:32 pm:

If the car is equipped with a diode cutout or VR then you may see some continuity between the cables depending on which way you connect them and which way the battery is installed in your test meter when it is set to resistance scale. Also if the light switch is in the dim or brite position then you will have continuity through the switch and bulbs if the car has light bulbs installed. If you have your foot on the brake pedal and your car has a stop light then you will have continuity. Unlike modern cars the ignition switch on your T turns off the IGNITION only. Lights, brake light switch, cutout, VR...all of these have a path to load the battery that is independent of the ignition switch. Of course accessory items also have a path through their control switching arrangements such as turn signals...etc.


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