Battery Drain - Dashboard rear entertainment USB - 2017+ Chrysler Pacifica Minivan Forums
 
LinkBack Thread Tools
post #1 of 3 (permalink) Old 01-08-2019, 05:48 PM Thread Starter
Junior Member
 
Join Date: Jan 2019
Posts: 2
Battery Drain - Dashboard rear entertainment USB

For the last three weeks we’ve had dead battery and drain issues in our 2018 Pacifica with rear entertainment. It’s been to the dealership twice and the first time they did software updates that they said should’ve resolved the issue. Obviously not. The second time they couldn’t recreate the problem.

When I brought the van in the second time for the same problem, I unplugged all of charging cables (2 of them and neither had been charging a phone when the battery died). Additionally, I unplugged the USB flash drive that has all of the movies on it.

When we went to pick up the van, the dealership said that they couldn’t recreate an unrelated issue (rear entertainment system not working right). In order to recreate that problem, I plugged in a different usb drive with some audio files on it. I recreated the problem for the rear entertainment system and they ordered the parts but I took the van. Went home, leaving the flash drive plugged in and within an hour (after reinstalling car seats of course) the van would not start.

Purely by accident we have successfully diagnosed the problem. So here’s my issue:


The USB port in the dash for rear entertainment system should not be drawing that much power when the vehicle is off. Even more so when you consider the power consumption of a flash drive. Additionally, when we we do turn on the vehicle, the system would have to re-index the contents of the flash drive, so it’s not like the power draw was even worthwhile.

Help?
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 01-08-2019, 08:42 PM
Senior Member
 
stop-eject's Avatar
 
Join Date: Sep 2017
Location: MD
Posts: 1,692
Garage
You are correct, the USB port can't draw more than 5W, which is not enough to drain the battery. Even if the drive somehow prevents the entertainment system from shutting off, it can't kill the battery in one hour. Try to do it few more times and see if there is a pattern. And get a voltmeter- a cheap one from Harbor Freight will do.

*** 2019 Hybrid Limited ***
stop-eject is offline  
post #3 of 3 (permalink) Old 01-09-2019, 06:44 AM Thread Starter
Junior Member
 
Join Date: Jan 2019
Posts: 2
Quote:
Originally Posted by stop-eject View Post
You are correct, the USB port can't draw more than 5W, which is not enough to drain the battery. Even if the drive somehow prevents the entertainment system from shutting off, it can't kill the battery in one hour. Try to do it few more times and see if there is a pattern. And get a voltmeter- a cheap one from Harbor Freight will do.
The first go around with this issue was months of drain - we just left the drive plugged in. During that time (and even now) the vehicle never sat for more than 18 hours between uses. At this point I doubt the battery is fully charged or able to hold a full charge because it’s draining so quickly.

I’ll look into the voltmeter. I’d be curious if the draw with and without the drive.
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 2017+ Chrysler Pacifica Minivan Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Extended Warranty Worth It? Neogeo Chrysler Pacifica Minivan Warranty 230 08-05-2019 04:51 PM
Battery Drain Down in New 2018 Pasifica Limited w/ESS 240ZMan New Member Introductions 12 04-26-2019 10:48 AM
How to Prepare Gas Pacifica For 3 months storage in Garage to avoid Battery Drain? bennyk 2017+ Chrysler Pacifica Minivan General Discussion 10 11-07-2018 01:36 PM
Connects between HiVolt Traction Battery and 12 V system myates312 2017+ Pacifica PHEV Hybrid Batteries And Charging 16 07-18-2018 10:24 PM
Shark fin antenna removal CRSmith Appearance & Body 15 04-18-2018 10:39 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome