Parasitic draw - battery drain overnight?

Tiny
MANOONA27
  • MEMBER
  • 2 POSTS
Normally, when I use the key to manually unlock either the passenger side door or the drivers side door, all the rest of the doors in the car unlock as well. As of now, I have to resort to using the key as the only way to unlock the drivers side door and the other locks in the car no longer respond when I do.
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Wednesday, September 30th, 2020 AT 3:48 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
As the remote keyless entry is not working try setting the wiper delay ring to center position turn the ignition on and off once then back on try them now, the may have been asleep.

If it does not work, it indicates a fault with the driver door switch which is not communicating with the control unit or it could be communicating as you mentioned it trying to work but the switch could be faulty or out of adjusment resulting in the other doors not being opened.

It could also be due to a faulty driver door lock actuator, which is quite likely as operating the passenger door does not unlock the driver door.
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+1
Wednesday, September 30th, 2020 AT 3:48 PM (Merged)
Tiny
BILL HEILMAN
  • MEMBER
  • 1 POST
  • 1998 HONDA ACCORD
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 220,000 MILES
I have a 1998 honda accord that I bought for my daughter. Six weeks ago it would not start. Took it to the local garage and had the battery and a relay box that controls the electric fan replaced. Worked for one week and then would not start again. Completely dead. Did not even have dash lights. To it to the honda dealer and he worked on it for 8 days. Fianlly he said to replace the alternator. Worked again for 10 days and then went to start it this week and it was dead again. No dash lights, nothing. Must have some kind of internal short that is draining the battery, but have had the car at two garages for a total of 12 days and no one can find the problem. What should I do next?
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Wednesday, September 30th, 2020 AT 3:49 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi Bill,

Somewhere there is an intermittent draining of the battery and such problems are difficult to diagnose as we do not know when the problem is going to happen.

After parking for how long did the battery got drained flat?
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Wednesday, September 30th, 2020 AT 3:49 PM (Merged)
Tiny
FPERALTA74
  • MEMBER
  • 3 POSTS
  • 1997 HONDA ACCORD
1997 Honda Accord 4 cyl Two Wheel Drive Automatic

Why is it that my car sometimes wont start? When I check the battery its drain. Even my battery is new. What is the cause? Thank you very much
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Wednesday, September 30th, 2020 AT 3:51 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

You will need to get a mechanic to do a current draw test on the electrical system, if they do not know how to do this, re post of further information on how to do it.

Mark (mhpautos)
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Wednesday, September 30th, 2020 AT 3:51 PM (Merged)
Tiny
SHINER
  • MEMBER
  • 1 POST
  • 1996 HONDA ACCORD
  • 4 CYL
  • FWD
  • MANUAL
  • 185,000 MILES
Something in my 1996 honda accord is draining the juice from the battery when it sits overnight. I just purchased a new battery thinking that was the problem and after four days it is doing the same thing, help!
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Wednesday, September 30th, 2020 AT 3:51 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi shiner,

Before doing anything, check if any lights are turned on or fans are working when ignition switch is turned off.

You need to do a battery drain test to find the source.
Disconnect the battery negative terminal and attach a ammeter to get the reading.
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Wednesday, September 30th, 2020 AT 3:51 PM (Merged)
Tiny
GDREITH
  • MEMBER
  • 1 POST
  • 1996 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
The battery drains on it's own. We've had the battery tested with a full 12 volts measured. Is it the battery cable, or might there be another possible cause?
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Wednesday, September 30th, 2020 AT 3:51 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Has the battery been load tested? If so and it is ok, you will have to do a current draw test, by placing an Amp merer between battery Pos and the cable and checking the current draw with doors closed and key out, if above about.15 Amps, start pulling fuses to locate the suspect circuit, also unhook the alt as you may have a back feeding diode causing this problem.

Mark (mhpautos)
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Wednesday, September 30th, 2020 AT 3:51 PM (Merged)
Tiny
SWIMBERLY
  • MEMBER
  • 3 POSTS
  • 1995 HONDA ACCORD
Electrical problem
1995 Honda Accord 4 cyl Automatic 155272 miles

I had my battery changed two days ago. It was an older battery and was definitely dead. I noticed the batter indicator light was flashing, the ABS light stayed on, and there was a clicking sound under the dashboard. Therefore, I drove it straight to the shop and all power was gone. They checked the altenator and everything checked out fine. I left with a new battery and no problems. Two days later, I start the car everything was fine. A few minutes later the battery indicator light begins lightly flashing and the ABS light goes on again. I took it to another shop, since the one I bought it from isn't open on Sunday. They said the battery was drained. They didn't have a new battery so they charged the battery again. It charged fine. Also, they did a test on the altenator and it was fine. I left with the car running fine again. Four hours later I get in the car to drive it and the battery indicator light begins lightly flashing again. What could be draining the battery so fast? I have a after market alarm on the car. It has been totally disconnected. Therefore, it isn't draining the system. Additionally, no lights have been left on in the car at night. I am taking the car back again what should be my next question to them? Could it be the altenator even though the test are coming back fine on it?
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Wednesday, September 30th, 2020 AT 3:52 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have them check the electrical load detector and computer control of the alternator-see below


https://www.2carpros.com/forum/automotive_pictures/12900_h1_3.jpg




https://www.2carpros.com/forum/automotive_pictures/12900_h2_3.jpg

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Wednesday, September 30th, 2020 AT 3:52 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi swimberly,

High possibility the alternator carbons are running out so it is intermittently not charging. Ask the shop to do a load test with all the electricals working and see if the charging will sustain.
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Wednesday, September 30th, 2020 AT 3:52 PM (Merged)
Tiny
SWAZ
  • MEMBER
  • 3 POSTS
  • 1996 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 165,000 MILES
Please help!

I have a 96 Accord that I purchased used 2 weeks ago and had a rattle in the exhaust. I lightly tapped the exhaust to see where the rattle was coming from. Figured out it was the heat shield.

I do not know if it is from what I did above, but the next morning I turned the key and nothing. The radio and interior lights came on, but no starter solonoid click or trying to turn over. Took off the battery and starter took to auto zone. Starter ok, batttery bad. Bought a new battery. Installed and started right up.

Next morning, same thing. Nothing. Tried jumping. Nothing. Cleaned all negative terminal wires. Nothing. Cleaned positive terminal wire. Nothing. Disconnected alternator. Nothing. Disconnected positive terminal hooked up test light and pulled fuse to look for current draw. Nothing.

What else should I try?
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Wednesday, September 30th, 2020 AT 3:52 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Starter okay-could be a stater relay, park and neutral switch and ignition switch.
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Wednesday, September 30th, 2020 AT 3:52 PM (Merged)
Tiny
SWAZ
  • MEMBER
  • 3 POSTS
I took the center console out to get at the starter relay behind the radio. Two of the wires have constant voltage. The other two have none even when I turn the ignition key forward. Is there a way to test the relay itself? You can not access the connections when the relay is pushed on the connector. Should there be voltage on the other two wires when the ignition key is turned forward?
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Wednesday, September 30th, 2020 AT 3:53 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
This what you do-short out the black and yellow which is the battery cable on the starter to the black and white on the small terminal on the starter-did it crank the engine over?
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Wednesday, September 30th, 2020 AT 3:53 PM (Merged)
Tiny
SWAZ
  • MEMBER
  • 3 POSTS
Can't make out any of the wires colors. There are 3 total. 1. The large wire that goes from the solinoid to the starter 2. The Large wire on the solinoid and 3. The Small wire on the solinoid.

The two large wires have a bolt connection and the small wire is just a slip on clip type.
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Wednesday, September 30th, 2020 AT 3:53 PM (Merged)

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