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Body Control Module Problem

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Old Nov 13, 2019 | 04:49 PM
  #16  
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Originally Posted by ILM-NC G37S
Why not just bypass the steering lock module? When the engine is running, pull the Steering Lock fuse. This should solve your problem. Only downside is that your steering wheel will not lock when you turn the car off.

Just my 10¢


So you think that will prevent the car from not cutting back on after turning off on a daily basis?
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Old Nov 13, 2019 | 05:51 PM
  #17  
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ILM-NC G37S
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Originally Posted by Ambruce
So you think that will prevent the car from not cutting back on after turning off on a daily basis?
Pulling that fuse should allow you to start your engine whenever you want. You are just taking the module out of the equation. There are plenty of users here on this forum and on the 370z forums who have pulled that fuse and never had a issue since. But you must pull the fuse while the engine is running as this ensures the module is unlocked.

It is worth a try. And sure as hell beats paying a ton of cash.
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Old Nov 14, 2019 | 09:16 AM
  #18  
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Originally Posted by Ambruce
So long story shop, I was shown how unplug/replug the Steering Column Module from underneath my steering wheel, which seems to have been able temporarily solve the issue by starting the car when it is unable to start.
Can you post a picture or describe where this plug is that you have to unplug and replug? I'm not having any problems right now but this is golden information to have if this problem happens to me or anyone else. Also ILM-NC G37S, is this fuse labeled or is it pretty easy to find? Thanks guys, very useful information here.
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Old Nov 14, 2019 | 10:21 AM
  #19  
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To the left of the battery mounted on the fender wall is the IPDM (large fuse box). The fuse location is clearly indicated:


The trick is to pull the fuse only when the steering lock is disengaged. Easiest way to do this would be to:
1) foot OFF brake pedal, turn key to ACC (you should hear steering wheel unlock);
2) verify steering wheel is unlocked;
3) disconnect and remove battery (yes, while car is in ACC);
4) locate and pull fuse;
5) put everything back to normal.

Edit: added photo of IPDM/er cover/fuse location.

Last edited by ILM-NC G37S; Nov 14, 2019 at 11:38 AM. Reason: Added photo
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Old Nov 14, 2019 | 03:27 PM
  #20  
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Originally Posted by KungFooFireman
Can you post a picture or describe where this plug is that you have to unplug and replug? I'm not having any problems right now but this is golden information to have if this problem happens to me or anyone else.

I was directed to reach my hand below the steering wheel, kinda towards the left. You directed me to the cord I would be unplugging and then re-plugging. The end of the cord has a white clip that you have to squeeze eject it from it's socket. I can try to get a picture of it at a later time.


But to be clear, the ONLY downside of unplugging that fuse (while the engine is running) as a workaround to the issue is that the steering wheel will not lock when I turn the car off? Which just means the tires can be turned any directions, but thats about it, correct? And my car is a push to start so im not sure if that plays any significance. @ILM-NC G37S @Elco
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Old Nov 14, 2019 | 04:03 PM
  #21  
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Yes, the ONLY downfall is that when you turn the car off, you can still turn the steering wheel. Push-to-start does not matter in this case.

And to clarify by "engine running," I am referring to the key being in the ACC or ON position (engine NOT physically running) when the battery is disconnected and removed. The steering lock MUST BE DISENGAGED BEFORE the battery is removed.

EDIT: Here is a video showing what needs to be done. The guy who made the video seems goofy- which is fine by me- but the procedure he uses to pull the fuse is spot on:

Last edited by ILM-NC G37S; Nov 17, 2019 at 09:54 PM. Reason: Added video link
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Old Nov 17, 2019 | 01:27 PM
  #22  
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Sedan and coupe

Could a bcm out a 2009 sedan work in a 2009 coupe sport version.
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Old Nov 17, 2019 | 02:10 PM
  #23  
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Originally Posted by GubbaGlo
Could a bcm out a 2009 sedan work in a 2009 coupe sport version.
Doubtful. The wiring alone would likely be different. Coupe to Coupe might work.
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Old Dec 30, 2019 | 11:43 AM
  #24  
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Yep, that's the steering lock fault for sure.
NOT the BCM.
There are lots of posts on this forum, 370Z and GTR forums related to the same problem.
There are few options to fix it, most of them by disabling the SL lock.
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Old Oct 16, 2020 | 10:17 PM
  #25  
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I have a 2011 Infiniti G37x , I went to the store came home & tried to drive the car two days later & there was water on the passenger side floor . It also wouldn’t start . It just gets stuck on the the on position but the car doesn’t start & hitting the start button it’s doesn’t go back to the off position unless you disconnect the battery . When the car is off It flashes the security indicator light even with the key in the slot . I changed the battery & brought a new positive battery post , still won’t start . Please help me with a solution if you can , I take care of my car , it has to be something minor like a rest or fuse change or something .
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Old Jan 7, 2022 | 10:26 PM
  #26  
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@Ambruce Did you end up figuring out what the issue is? I'm currently having a very similar issue.
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Old Feb 10, 2022 | 12:47 AM
  #27  
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Originally Posted by Ambruce
Thank You @Elco and others for this information. Please allow me to explain the timeline of events and issues I’ve been having with my car.

On 9/10/19, I pumped gas into my car (2011 G37 Journey Sedan, vehicle is push to start). After pumping gas, I tried to start the engine but the car only went into ACC I believe with all the lights on the dash on. I turned the car off and then attempted to start the car/engine again but the car didn’t do anything, except showing the amber key light on the dash. I got the car towed to a shop that specialize in Nissan/Infiniti that was highly referred to me that is in my area. He diagnosed the issue as it being the Body Control Module failing and needing to be replaced. The mechanic started working on it on 9/16/19 and I picked it up 9/18/19 and it was working fine.

Four days later on 9/22/19, the same thing happened; car didn’t start, only displaying the amber key light on the dash. I had the car towed to same shop. I had the car towed that day and the mechanic reached out to me the next day saying he noticed some fuses missing due to him “taking a deeper look” into the car. He fixed it that day and I picked it up the next day.

Now two days ago on 10/17/19, the same thing occurred with the car not starting, showing the amber key light once again. Had the car towed to the same shop. The mechanic is now saying the “same” issue ISNT happening this time (even though it appears to be). He said the issue isn’t exactly the same, but very similar. He said the Steering Column Module needs to be replaced now. I know the two go hand in hand but all of this just seems a lil suspect.

It almost looks like either he replaced the Body Control Module originally in error when he should of replaced the Steering Column Module. But I don’t know how the car was able to work after both times coming from the shop. I don’t know enough about technical details. Any thoughts or suggestions from anybody? This car is in the shop now.
Hi, so im having exactly the same problem you had, my mechanic first told me it was the BCM, then not even 1 day later I returned again with the same issue of the car not starting and the amber light on, 2 weeks after he told me it was the steering module…..now 1week after picking up the car same problem once more, I called him and now he’s talking about the abs module.
did you ever found out what the problem was?
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Old Feb 11, 2025 | 08:03 AM
  #28  
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having the same issue without the alarm part. ik this is an old post but ngl it got me thinking its the gauge cluster and not the bcm
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