Nissan Altima Forum banner
1 - 20 of 23 Posts

·
Registered
Joined
·
34 Posts
Discussion Starter · #1 ·
Does anyone know if I would be able to swap the wiring harness for my 2.5S with a harness from a 2.5SL or even a 3.5SL to incorporate the use of the heated seats, and steering wheel controls, and any other features?

I'm not sure exactly which wiring harness I would have to purchase but I already have my hands on the harness for the heated seats and have my eyes on the steering wheel with volume controls. I'm just not sure what harnesses i would need or if I need to swap out the fuse box for the heated / power seats also.
 

·
Registered
Joined
·
1,325 Posts
It isn't one harness. For the seats it's three, Main, Body, and Engine Room. For the steering controls it's just Main, but you'll need a different head unit and possibly a new spiral cable. Be advised that the console and dashpad both need to be removed to replace the Main Harness. It isn't a small job.
 

·
Registered
Joined
·
34 Posts
Discussion Starter · #3 ·
It isn't one harness. For the seats it's three, Main, Body, and Engine Room. For the steering controls it's just Main, but you'll need a different head unit and possibly a new spiral cable. Be advised that the console and dashpad both need to be removed to replace the Main Harness. It isn't a small job.
Alright, I have this new head unit already that part is done haha. Do you know the part numbers that would be needed? I found a wire harness with part # 240112B00 but I'm not sure if that's it. Would the BCM need to be switched also? If all of that is needed just for heated seats i'll probably sit out on that for now but I would at least like to know what the part number is for the main harness for the steering controls
 

·
Registered
Joined
·
1,325 Posts
You're probably better off with aftermarket for the seat-heat anyway. The problem with the harnesses is that Nissan doesn't specify which harnesses fit which equipment. It's likely that your only hope is to find a model with the equipment you want in the JY and get the number off the harness tag.
 

·
Registered
Joined
·
34 Posts
Discussion Starter · #5 ·
You're probably better off with aftermarket for the seat-heat anyway. The problem with the harnesses is that Nissan doesn't specify which harnesses fit which equipment. It's likely that your only hope is to find a model with the equipment you want in the JY and get the number off the harness tag.
Okay I see i'll have to check it out, I thought there would be a way to know which harness it was that connected from the steering column to the radio Thank you though!
 

·
Registered
Joined
·
34 Posts
Discussion Starter · #9 ·
Mains all have a 24010 prefix. Engine Harnesses are 24011, Engine Room Harnesses are 24012. Body Harnesses are usually 24014, but there's often more than one along with various sub-harnesses.
Okay I'm going to try this out i should be able to pick one up for a couple of bucks. I'll report back when it's all complete :)
 

·
Registered
Joined
·
34 Posts
Discussion Starter · #10 ·
Hood Motor vehicle Vehicle Automotive tire Car
Hey guys so I’m taking the harness apart and I’ve found this brown connector with a pink and red wire that is not on my harness. Any idea what this connector is for?
 

·
Registered
Joined
·
34 Posts
Discussion Starter · #12 ·
Given the location and color, I'd say it's probably for a tweeter speaker at the corner of the dash. If so, you should find one just like it at the other end.
That’s what i originally thought as well but this one seems to be going towards the bottom right near the ECU and i have a tweeter already wired with a black and white wire on the top. Maybe it’s for a second tweeter? Also any idea how to remove this cabin air intake assembly? Haha
 

·
Registered
Joined
·
34 Posts
Discussion Starter · #14 ·
Exactly where does it position when the harness is in place? Could be a glove box lamp or could be a sensor for the HVAC.
Alright i finished the install and i have two wires that aren’t matching on the original harness. This is where the brown connector lays around and it doesn’t have much length to move from that location in this picture
Hood Motor vehicle Automotive tire Automotive exterior Bumper

I’m not sure if it’s for the night time running lights or not because I’m pretty sure it’s supposed to be on the other side but that side still only has one connector for the security light.

For the second connector that’s not matching it’s a 3rd connector for the thermostat controls

Hood Automotive tire Motor vehicle Gesture Finger

Now my question is will i have to change the ECU now?
 

·
Registered
Joined
·
1,325 Posts
The only brown 2-pin connector I can find that fits the description is M63, wire-to-wire connecting to Body Harness #2. However, I can't locate it in any of the WD's. The wire colors aren't right for either the tweeter or the glove box lamp. This might help you out:
Organism Rectangle Gesture Font Slope
Font Parallel Pattern Number Monochrome
 

·
Registered
Joined
·
34 Posts
Discussion Starter · #20 ·
I did some research and figured out the third connector for the AC controls was actually the light for the air bag light. I actually was able to confirm it with the light I had from a previous part buy I did on an SER too bad I need to get another ac cover now. Maybe I'm missing something with the connector and will realize it when I actually re-install the dash after I change this heater core Thanks for the help! Where did you get the schematic from?

Also I'm a little confused with the steering wheel controls. The harness I had only had two connectors for the radio. Isn't there supposed the be three for the new harness with the controls?
 
1 - 20 of 23 Posts
Top