Digital Voltmeter Mod - Ford Powerstroke Diesel Forum
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Old 04-15-2014, 04:50 AM
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Digital Voltmeter Mod

So, I recently had to replace my FICM, and think that it may have been due to low battery voltage. I have Torque, but sometimes it a pain to start the phone, then the app, then wait for Torque to load just to see the volts when starting. So, I found this little digital voltmeter on Amazon, and decided to give it a try. I like how it turned out. Haven't seen it at night, so I hope its not to bright.

I found a wire (yellow\white stripe) in the ignition that only comes on when the key is turned to run. It also doesn't shut off during cranking, which other wires I tried did. The black wire was just grounded to a nearby ground.









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Old 04-17-2014, 05:50 PM
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Looks good, I did a similar install but I mounted the unit in the half cubby hole beside my upfitter switches. I got the voltage from a wire that is left dead headed to power after market gauges, however it cuts out during cranking, I like your source better.
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Old 04-17-2014, 06:25 PM
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Very cool! I have not seen anybody else come up with this idea. Nice!
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Old 04-17-2014, 06:47 PM
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Originally Posted by kinnisoj View Post
Very cool! I have not seen anybody else come up with this idea. Nice!
A digital voltmeter ?
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Old 04-17-2014, 06:49 PM
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I'm diggin it man. I like it.


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Old 04-17-2014, 06:55 PM
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A digital voltmeter ?
Not set up like he has it you ball buster!
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Old 04-17-2014, 07:07 PM
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not bustin balls I just thought this was common
if the CTS didn't read battery voltage and FICM voltage while cranking I would have one but with the AMPS option

also it's nice to know they sell a cig lighter version and the OEM power port stays on during cranking

the install is nice and clean on the OP's truck I think the red LED might be a bit much if it's not dim able
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Old 04-18-2014, 08:33 AM
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Digital Voltmeter Mod

I think it would be more interesting to have it tapped directly into the FICM. Seen it done on a couple trucks.


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Old 04-19-2014, 03:51 PM
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I like it!! Very clean, Amazon link?
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Old 04-19-2014, 06:37 PM
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Amazon.com: SMAKN 2 Wire Green Dc 4.0-30v LED Panel Digital Display Voltage Meter Voltmeter: Home Improvement Amazon.com: SMAKN 2 Wire Green Dc 4.0-30v LED Panel Digital Display Voltage Meter Voltmeter: Home Improvement


I got green to match the interior lights. They make them in other colors too.
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