3IS Battery Drain (merged threads)
Driver School Candidate
Joined: Jun 2017
Posts: 44
Likes: 2
From: Illinois
Mine had the new gateway ECU too but the battery still drained when I didn't use the car for a week. This time they replaced the battery because they said it was frozen (this was during we had a stretch of sub zero temps). Car is stored in an unheated garage.
Advanced
Joined: Mar 2008
Posts: 674
Likes: 114
From: Ontario
any issues after that?
Driver School Candidate
Joined: Jun 2017
Posts: 44
Likes: 2
From: Illinois
So far so good. But I have been making sure to start the car at least once a week if I'm not using it. I also have been using the door switch instead of the remote to lock the car.
So not sure if the problem is totally gone or it's just the above practices mitigating it.
So not sure if the problem is totally gone or it's just the above practices mitigating it.
Last edited by Chedeng88; Feb 12, 2018 at 09:45 AM.
Advanced
Joined: Mar 2008
Posts: 674
Likes: 114
From: Ontario
So far so good. But I have been making sure to start the car at least once a weeks if I'm not using it. I also have been using the door switch instead of the remote to lock the car.
So not sure if the problem is totally gone or it's just the above practices mitigating it.
So not sure if the problem is totally gone or it's just the above practices mitigating it.
Advanced
Joined: Sep 2017
Posts: 525
Likes: 87
From: CA
Getting my first taste of this battery drain phenomenon.
Literally had my car at the dealership for its 30k service 3-4 days ago, and now my battery is dead. Interestingly, they neglected to perform the "Check Battery Performance" portion of the vehicle's report card.
Sad day. Luckily it's still under the original warranty I guess.
Literally had my car at the dealership for its 30k service 3-4 days ago, and now my battery is dead. Interestingly, they neglected to perform the "Check Battery Performance" portion of the vehicle's report card.
Sad day. Luckily it's still under the original warranty I guess.
Rookie
Joined: Jan 2016
Posts: 61
Likes: 3
From: BC
After almost 4 years of fighting and 2 dealers. 3 batteries replacement. Apparently each time the battery threw an error so they kept replacing it. On the 4th time last week, the battery was tested okay so they finally have a reason to give me a new Network Gateway ECU this morning.
I was also able to duplicate the issue. If I lock the car using the remote over night the car will die the next morning. Normally, I lock the car using the handle. My car is garage kept and the key is one floor up from the garage. Concrete floor! But apparently the range is enough for the car to be talking to the remote. Either that or the car is stupid and kept pinging the remote. Who knows. But locking using the remote will drain the battery. It’s too bad it took almost 4 years to finally be able to consistently repeat it.
I was also able to duplicate the issue. If I lock the car using the remote over night the car will die the next morning. Normally, I lock the car using the handle. My car is garage kept and the key is one floor up from the garage. Concrete floor! But apparently the range is enough for the car to be talking to the remote. Either that or the car is stupid and kept pinging the remote. Who knows. But locking using the remote will drain the battery. It’s too bad it took almost 4 years to finally be able to consistently repeat it.
Lexus Test Driver
Joined: Jan 2007
Posts: 7,460
Likes: 232
From: CA
Advanced
Joined: Mar 2008
Posts: 674
Likes: 114
From: Ontario
Pit Crew
Joined: Jun 2015
Posts: 148
Likes: 0
From: texas
well, another battery bites the dust last night, previous replacement was done back in June 27 2016, 10k miles ago. it was replaced under battery warranty both time.
my car is 2014 IS 350 F sport w/ nav
my car is 2014 IS 350 F sport w/ nav
Last edited by Baopee; Nov 26, 2018 at 10:32 AM.
Pit Crew
Joined: Jun 2015
Posts: 148
Likes: 0
From: texas
only took another 11 days for the fifth battery to fail, stealership finally replaced the gateway ECU
2014 IS350 F sport
08.30.2016 - 1st battery replacement
06.27.2017 - 2nd battery replacement
11.26.2018 - 3rd battery replacement
12-06-2018 - 4th battery / gateway ECU replacement
2014 IS350 F sport
08.30.2016 - 1st battery replacement
06.27.2017 - 2nd battery replacement
11.26.2018 - 3rd battery replacement
12-06-2018 - 4th battery / gateway ECU replacement
Driver School Candidate
Joined: Jul 2018
Posts: 10
Likes: 0
From: GA
Just had my 2014 battery die on me. Battery was less than a year old. I took it to the dealer and they confirmed the Gateway ECU was drawing power and will replace with the new PN per the LSB. My car was in the VIN range and has BSM.
Has anyone had the issue continue after replacement with new ECU?
Has anyone had the issue continue after replacement with new ECU?
Rookie
Joined: Nov 2017
Posts: 79
Likes: 13
From: VA
Can I purchase the correct part number for Network Gateway ECU (89100-30160) and replace this myself? Do I need to do anything to program the car to accept the replacement Gateway ECU? My car is past warranty and even with a new battery, the car won't start if I let it sit idle for more than 2 days.
The replacement looks fairly straight forward, just wondering if anyone has done this themselves on an 14-15 IS. Looks like its been done DIY successfully on a GS. https://www.clublexus.com/forums/gs-...ery-drain.html
The replacement looks fairly straight forward, just wondering if anyone has done this themselves on an 14-15 IS. Looks like its been done DIY successfully on a GS. https://www.clublexus.com/forums/gs-...ery-drain.html