Parasitic battery drain?
#31
Lexus Test Driver
Thread Starter
Yep. It's been sitting for a few days now. I haven't had any reason to drive it recently. I'll see if it starts up today with the new battery.
#33
Hello guys I'm new to this forum, and it's funny cause they had the same issues at Infiniti. I just traded my 2011 M37 in for the 2014 GS F-Sport I doesn't look like mine falls in that VIN range and I don't drive my car every day I'm hopping I don't start having this issue.
#34
Lexus Test Driver
iTrader: (1)
The ECU needed to repair this issue is only $60 on eBay.:
This is the updated part number from the tsb
89100-30181
https://www.ebay.com/itm/262362784608
This is the updated part number from the tsb
89100-30181
https://www.ebay.com/itm/262362784608
#35
Does anyone know where this part is in the vehicle so I can replace it myself? I came out to my GS again after starting up just fine after one day and it was completely dead.
Any diagrams or general locations would be great.
Any diagrams or general locations would be great.
#36
Driver School Candidate
Battery drain
Haven't been around these parts in a while. Hope all of you are doing well and enjoying the best brand on the planet. I have a question about my 2013 GS.
In January 2016, my GS wouldn't start after sitting for several days. I got it started and took it in to find out the battery was bad already and they changed it.
Flash forward to a few months ago. Same issue, but I started it up and carried on. Didn't bring it to my dealer.
Then yesterday, the same thing. Haven't driven it between Monday and Thursday and viola! Click, click, click when I try to start. I put the charger on for a while and got it to start. Took it to the dealer and they tell me the battery tests fine. However, was told that with "newer cars, if you don't drive them enough (I bought mine in May 2012 and have only 34k miles, so far) the battery drains because of the modules within the vehicle that draw voltage from the battery. If this happens often enough, the battery will drain to the point where the car won't start."
Talked to an independent mechanic I know and he suggested that it is a parasitic drain on the battery from a module probably. To pinpoint where the drain is coming from, a mechanic needs to sit on the issue and watch it with meters. I do have a remote starter that I notice has a blue light on it that is lit all the time, but is that enough to cause this? I looked up a video on YouTube and found that I can do this myself through the process of elimination by using an ammeter and pulling fuses. I would have thought the dealer's mechanic would know this. Or maybe it costs them too much labor to figure it out?
The dealer suggested that when I drive my car, I should hook up a charger at night so the battery will be 100% charged by morning. Really? I have a luxury car that they are suggesting that I should open my hood and charge the battery up at night? Why doesn't that feel right to me? Why didn't this thing happen a couple years ago?
Any ideas or suggestions are helpful.
In January 2016, my GS wouldn't start after sitting for several days. I got it started and took it in to find out the battery was bad already and they changed it.
Flash forward to a few months ago. Same issue, but I started it up and carried on. Didn't bring it to my dealer.
Then yesterday, the same thing. Haven't driven it between Monday and Thursday and viola! Click, click, click when I try to start. I put the charger on for a while and got it to start. Took it to the dealer and they tell me the battery tests fine. However, was told that with "newer cars, if you don't drive them enough (I bought mine in May 2012 and have only 34k miles, so far) the battery drains because of the modules within the vehicle that draw voltage from the battery. If this happens often enough, the battery will drain to the point where the car won't start."
Talked to an independent mechanic I know and he suggested that it is a parasitic drain on the battery from a module probably. To pinpoint where the drain is coming from, a mechanic needs to sit on the issue and watch it with meters. I do have a remote starter that I notice has a blue light on it that is lit all the time, but is that enough to cause this? I looked up a video on YouTube and found that I can do this myself through the process of elimination by using an ammeter and pulling fuses. I would have thought the dealer's mechanic would know this. Or maybe it costs them too much labor to figure it out?
The dealer suggested that when I drive my car, I should hook up a charger at night so the battery will be 100% charged by morning. Really? I have a luxury car that they are suggesting that I should open my hood and charge the battery up at night? Why doesn't that feel right to me? Why didn't this thing happen a couple years ago?
Any ideas or suggestions are helpful.
The following users liked this post:
Wassum3636 (11-01-21)
#37
FWIW i leave my GS idle in a garage 2-4 weeks at a time in winter and it never fails to start.. The BS some dealers spout about this issue is obnoxious.
#40
Pit Crew
Does anyone know what fuse powers the faulty ECU? I want to test it to see if mine is failing
#41
i still have 3m warranty but everytime i breng the car to garage everything do fine. They cant find any fail. It gonna crazy with this.
#42
Lexus Test Driver
iTrader: (1)
i have gs 300h 2016 and i have this problem with start the car. Seem like battery or something like that . when i turn airco off, brake park auto off then i can start the car.
i still have 3m warranty but everytime i breng the car to garage everything do fine. They cant find any fail. It gonna crazy with this.
i still have 3m warranty but everytime i breng the car to garage everything do fine. They cant find any fail. It gonna crazy with this.
#43
#45
Come warning popup with brake mode unavailable.