2005 Nissan 350z / Anniversary Edition / Auto Trans / Brembos

ABS, BRAKE, VDC and SLIP light all on my dash. Scanner cannot communicate with abs module.

Proceeded to check basics, found fuse in IPDM Box labeled Brake to be blown- attempted to replace fuse to rescan but fuse immediately and violently blew.
Unplugged all connectors going to abs module and fuse continued to blow.

Okay... so short to ground present in harness leading from IPDM to ABS module, I proceeded to unplug connectors off the IPDM until said fuse no longer received power - (In this case ground). I found the corresponding harness and confirmed fuse no longer blew when harness was unplugged.

I had an oversight and didn't even bother checking online for a wiring diagram before continuing but, I backprobbed said harness and found which wire was grounding out the IPDM, I unhooked that one wire and short to ground was no longer present.

I was lazy and did a continuity test rather than removing cowl and wipers and following the wire physically leading to the ABS module. I found what I thought to believe was the correct wire through a continuity test from harness to harness, (Which I now realize is a flawed way to check, don't chew me out too bad lol), I ran a new wire -- (Again because I didn't want to remove cowl, have to uncharge the ac and remove ac lines and remove brake lines then have to bleed the brakes) -- with the new wire ran and everything hooked back up the short to ground was gone, the fuse no longer blew and the pump runs... great! Right? Well... now the pump runs but runs constantly and stays on even when car is off but ignition on. Still on my idiocy I figured the relay built into the module might've been damaged so I just ordered a new module and threw it in knowing it was unlikely, with the new module in the symptoms remain the same.

I'm now trying to find a wiring diagram on the FSM, but it's honestly, hard to read.

I'm not afraid to admit my rush job was wrong and I understand I didn't do a proper diag before proceeding with attempted repairs.

I'm humbly asking for assistance before proceeding any further, with reading the FSM. It almost appears to me as if the FSM shows a different style ABS module than mine. I have attached a photo of my style abs module...

I appreciate any insight and feel free to chew me out lol.


My style ABS Module

 

Removing the wipers and cowling is pretty easy on the 350Z compared to many other makes/models out there. I pulled this data from my 2006 FSM, specifying coupe and with VDC. There are some vehicles equipped with only ABS, no VDC, hence why you're seeing different diagrams and pinouts.

The only wire from the IPDM straight to the ABS module is on Pin - 1. It should be Green/Red, this carries 12V ignition power. I've been experimenting with AI LLM and RAG to quickly/efficiently get data from the 2006 FSM I imported.
Hope this helps.
-Icer

 

Here's the wiring information for a 350Z ABS module, WITHOUT VDC. The image of the module you shared above appears to be a non-VDC equipped unit since the connectors don't appear large enough to be 88-pin.

 

I didn't look for an option without VDC thanks a lot for this, I'm headed to the car now to check it out. This is a big help, and if you manage to get the AI down that'd be a HUGE breakthrough for this. These images you provided make it much easier to understand, thank you truly.

 

Hope it helps! I know it's an absolute pain fumbling through the FSM chapters tracing down wiring. Using Agentic AI to query the manual and compile all the data in an easy to digest "big picture" manner really speeds things up.

If you need to see more detail for a specific circuit, connector, connector location, etc....just let me know.
Good Luck!
-Icer

 

Confirming I actually do have VDC, have the button for it by knee and light on dash is present “VDC OFF”

I need to know the wiring for this connector off the ABS module :

Splits off into 4 harnesses. Two 8 pin harnesses , One 3 pin harness and one 2 pin. Also a grounding wire

 

See my 1st reply with VDC post, that shows the 88-pin connector details. I'll see if I can dig up the details for the smaller harness plugs.
-Icer