scanner is not working?

2016 HONDA ODYSSEY
80,000 MILES • 4 CYL • 2WD
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GERALDSYLVESTER
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I have the vehicle listed above that has been sitting for 18 months. I tried ordering different scanners to try and figure out what is wrong. The first one was a Topdon ArtiDiag500 unit, the second one was a LAUNCH X431 CRP919E. I thought I needed the second one so I could order a PCM module and would use it to program the PCU. The module is ordered from eBay and supposed to come in Monday (09/16/24).
Any thoughts on connecting the scanner up to the DNC connector. I also order a 12 volts charger connector. I’m using it ever time when I try. Every time I plugged the scanner up the voltage has had a problem.
I sent an email in yesterday about the scanner power connector, where does the DNC get its power.
Haven’t heard anything back yet.
Sep 14, 2024 at 3:09 PM
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STRAILER
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So is the problem that the scanner is not working, or the battery is draining down? These are separate issues, and we only handle one problem per thread. I will edit this post to deal with the data port connection power. Please start a new question of the battery drain. Please go over this video:

https://youtu.be/6Tlg3JmgNSQ?si=sC-NSlCQHuV7z_qE

Here is a wiring diagram for the ALDL connector and the grounds and fuse it uses to power the scanner up which is fuse #16 10 amp in the fuse panel under the hood.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here is the location of the fuse as well. Check out the images (below). Please let us know what happens.



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Sep 15, 2024 at 10:42 AM
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GERALDSYLVESTER
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(1) Ken the battery is a new one, it’s about three months old. I have a battery jumper tie to the battery anyway. When the car sits by it self, something is pulling the battery down. I have to cut the power off the car when I’m thru working on it.Thank for the copy of the F16 connector schematic.
(2) Problem repairs: The key switch battery is dead, replaced it with a new battery and my problem fixed itself. I wish I would have checked my key before order the lunch scanner.
At least I have a new scanner to walk me through any other faults. I did pump up three low tires that was low.
Oct 28, 2024 at 6:20 AM
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STRAILER
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Please start a new question for the battery drain issue. Did you check the fuses and ground I motioned above? Does the scanner work now or?
Oct 28, 2024 at 10:20 AM
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GERALDSYLVESTER
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Yes Ken, the scanner is working good. We hadn’t drove it yet, I got to get some more insurance and a tag. Thank for everything. This is a great site for repairs.
Oct 28, 2024 at 9:23 PM
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STRAILER
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Can I ask what fixed the scanner not working?
Oct 29, 2024 at 11:03 AM
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GERALDSYLVESTER
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Ken, I don’t know, maybe it was working all along. After I got the key battery replaced the scanner started working. I really like that scanner, it checked a lot of different events.
See you later, Gerald Sylvester
Oct 30, 2024 at 4:45 PM
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STRAILER
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Thanks for letting us know, we are here to help, please use 2CarPros anytime.
Oct 31, 2024 at 1:47 PM