Battery drain instrument cluster fuse 35 draws 5 amps - Ford Powerstroke Diesel Forum
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Old 12-02-2013, 02:30 PM
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Battery drain instrument cluster fuse 35 draws 5 amps

OK, I know this isn't the Excursion forum, but it gets more attention/readers, so...

Batteries go dead overnight on my '03 7.3L Ex box. Charging voltage is 14.3+, and near dead battery voltage is 12.2 v. After several hours of charging the beast starts right up, and I can drive it normally all day, with several start/stop cycles. Only aftermarket goodies installed are Edge CTS monitor and DP tuner. They have been in for 2 years, and problem arose recently.

Checked current draw with both batteries disconnected, let module sleep first. Fuse 35 - instrument cluster - pulls 5.3 amps, AMPS not milli-amps! Without fuse 35, total draw is about 20 ma.

Would appreciate advice as to what is next logical step to test. I understand that the cluster is related to a battery saver and/or GEM module, but not sure of specifics for this year.

Any tips on what test process to follow or what to check next from here?

Thanks!

Glen
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Old 12-02-2013, 03:54 PM
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Old 12-02-2013, 07:18 PM
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Drain measured by disconnecting both battery ground cables and putting meter in series with one ground cable and neg battery post.

Yep, get a nice spark off of battery terminals when reconnecting if fuse 35 installed.

My bad: Forgot to mention that fuse #2, Power point - floor console, was blown as well. Have not replace it - tomorrow's job. Also, tore steering column housing off and insulated wire on shift column that goes to tow mode switch on end. Wire had rubbed to expose a bare spot. Not sure if it has anything to do with other issue(s) though.

Glen
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