CRV overnight battery drain
01-09-2019
#1
Registered!!
Thread Starter
Join Date: Jan 2019
Age: 51
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 
CRV overnight battery drain
We have a 2007 CRV (original owner) with no modifications. It’s been a very good vehicle-372,000 kms.
A few years ago we noticed you can’t leave anything on for more than a few minutes without draining the battery.
Battery was changed every 4-5 years. Very Weak start in cold weather. An Electrical System check by Honda & an independent garage stated-No issues.
I read some & got a multimeter.
CRV Tested as Follows:
-CRV off for over 1 hour, everything off, key removed, doors closed
-Battery tested to have 12.3 Volts
-With Neg clamp removed approx a 700 mA draw was measured
-Engine Compartment Fuse Box-removed all relays/ fuses 1 at a time
-Fuse 23 removed-meter read O.000
A Brief check of various systems found that only the radio wasn’t working with fuse 23 removed.
A few years ago we noticed you can’t leave anything on for more than a few minutes without draining the battery.
Battery was changed every 4-5 years. Very Weak start in cold weather. An Electrical System check by Honda & an independent garage stated-No issues.
I read some & got a multimeter.
CRV Tested as Follows:
-CRV off for over 1 hour, everything off, key removed, doors closed
-Battery tested to have 12.3 Volts
-With Neg clamp removed approx a 700 mA draw was measured
-Engine Compartment Fuse Box-removed all relays/ fuses 1 at a time
-Fuse 23 removed-meter read O.000
A Brief check of various systems found that only the radio wasn’t working with fuse 23 removed.
01-09-2019
#2
If you think a good mechanic is expensive, try hiring a bad one
Re: 07 Civic overnight battery drain
-With Neg clamp removed approx a 700 mA draw was measured
Several items in the car share fuse 23 ("back up"), but completely unplugging the radio might be a check you can do
01-09-2019
#3
Registered!!
Thread Starter
Join Date: Jan 2019
Age: 51
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 Re: CRV overnight battery drain
Ok
I left the vehicle to sit for over an hour so various modules would “sleep” and then tested the battery & fuses. Isn’t that what’s recommended?
I left the vehicle to sit for over an hour so various modules would “sleep” and then tested the battery & fuses. Isn’t that what’s recommended?
01-09-2019
#4
If you think a good mechanic is expensive, try hiring a bad one
Re: CRV overnight battery drain
Modules can 'wake up' when battery is disconnected then reconnected, so if you didn't already have your meter connected in series beforehand you could end up with a false reading.
01-09-2019
#6
If you think a good mechanic is expensive, try hiring a bad one
Re: CRV overnight battery drain
Young children LOVE stuffing coins into the CD slot.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
Browns149
I.C.E. (Audio) & Electrical Upgrades
6
09-11-2018 10:12 AM
Berto
Mechanical Problems/Vehicle Issues and Fix-it Forum
4
01-19-2011 06:41 PM
