Rear Differential Temp Sensor Harness

[So0_NaSTy]

So GT’s with PP’s don’t have the diff cooler, I can tell that based on aerodynamic pieces on OEM Diagrams. However; what is the GT PP missing regarding equipment if you wanted to install one? Besides the cooler itself. Sorry. Late to the convo. @roket

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[roket]

So GT’s with PP’s don’t have the diff cooler, I can tell that based on aerodynamic pieces on OEM Diagrams. However; what is the GT PP missing regarding equipment if you wanted to install one? Besides the cooler itself. Sorry. Late to the convo. @roket

its missing a differential fluid pump and the cooler. pretty sure the pump is controlled by the PCM

 

[Cool66]

No worries on the initial harness. I returned the damaged part and have requested a full refund. What site or software are you using for the harness diagram? I have been able to lookup the part# but have been unsuccessful in locating the harness diagram such as the ones that have been posted. For clarification, part #PR3ZR2C011G is the harness believed to be correct based on current application? Less adaptive damping, Less Headlamp Leveling....

 

[mewstang]

For some reason the diagram on ford parts for the harness you located shows not available when I open your link. I have also emptied my trunk several times for track days but I don’t recall a harness towards the front of the trunk near the back seat. I’ll check again at some point this week and post the results. I would like to make this work so that I can see my diff temps on my dash along with the rest of my temps. As for the rear differential cooler, I’ve narrowed it down to OEM or Steeda but I still have a bit of research to complete. I’ve completed the OEM PP oil cooler, front brake cooling ducts, and radiator upgrade and would like to finish it out with the OEM rear differential cooler to keep it all OEM. We will see.

Have you been taking out all the carpet too? I go a little crazy when i do race prep and had the rear seats removed too. Also what is the difference in the radiator and are the brake cooling ducts you mentioned the underbody air deflectors?

 

[mewstang]

No worries on the initial harness. I returned the damaged part and have requested a full refund. What site or software are you using for the harness diagram? I have been able to lookup the part# but have been unsuccessful in locating the harness diagram such as the ones that have been posted. For clarification, part #PR3ZR2C011G is the harness believed to be correct based on current application? Less adaptive damping, Less Headlamp Leveling....

I believe so as i looked for vin numbers of a 24 with pp but not magneride (it also was a manual idk if that changes anything) and the parts website said it was a match and when i put my vin number it would show that the harness that ends in D was the match. https://parts.ford.com/shop/en/us/e...connectors/wiring-(coupe)-p-pr3z14a005f?pdp=y I hope this shows the wiring harness on your end i dont think its the correct one but all the diagrams look the same and i havent seen a difference in the number of connectors.

 

[mewstang]

want to say sorry for not sending pictures. i wasnt able to get a good look due to how cramped everything was.

looks like you're right. i was wrong about the wiring harness. so the good news is we now know what harness it is. the bad news is that this harness looks to be rather complicated to uninstall and reinstall. looks like the harness in question is PR3Z-2C011-G. sorry again @Cool66 for giving you the wrong part number

Do the arrows on the left say connections that would only be on magneride cars?

 

[roket]

Do the arrows on the left say connections that would only be on magneride cars?

yeah the diagram i got was for magneride, but obviously that wont be ther for non magneride vehicles

 

[mewstang]

https://parts.ford.com/shop/en/us/axle-cooling-pump-rear-p-fr3z4c158b?pdp=y#/sectionId:854266042 Looking at the position of the connector on the oem pump im wondering if that first harness you bought was for the pump as the position of the pink connector in the middle could match the location.

 

[Cool66]

Have you been taking out all the carpet too? I go a little crazy when i do race prep and had the rear seats removed too. Also what is the difference in the radiator and are the brake cooling ducts you mentioned the underbody air deflectors?

I have not been removing the carpet in the trunk—only taking out any loose items from the vehicle.

Regarding the radiator upgrade, the Performance Pack (PP) radiator is 17mm thicker, as confirmed by Ford Performance, and significantly enhances cooling capacity, particularly in track conditions. Before upgrading the radiator and oil cooler, track temperatures reached 260–270°F for oil and 225–235°F for coolant. Following the upgrade, peak temperatures during a 20-minute session at Daytona or Sebring in track mode (85–90°F ambient conditions) have dropped to 215–225°F (oil) and 200–215°F (coolant). The PP radiator is a direct replacement for the stock unit, making installation straightforward. An optional fan upgrade is available, though I have not yet installed it. The part number for the PP radiator is PR3Z-8005-A, currently priced at $301 (compared to $286 at the time of my purchase).

Oil temperature is determined using an algorithm based on input from the coolant temperature sensor, which is located on the backside of the passenger-side cylinder head. This sensor is identical across Non-PP, PP, and DH models. Installing the PP radiator improves cooling capacity and enhances the effectiveness of the oil cooler in reducing oil temperatures. While adding only the oil cooler provides a modest reduction in oil temperature, combining it with the PP radiator allows the vehicle to achieve factory PP S650 temperature levels. I collaborated with the local Ford dealership’s shop foreman to confirm this setup.

One challenge with this upgrade is the inner wheel liner, which either needs to be replaced with the OEM PP version or modified by cutting horizontal vents to facilitate airflow through the cooler and out of the fender liner. I opted to replace both fender liners, the undertray, and the lower grille, which also allowed me to install the PP front brake ducts. I sourced the fender liners from Ford OEM Parts Online, while the brake ducts and lower grille were purchased affordably on eBay. Additionally, I designed and 3D-printed custom air duct diverters for the lower control arms using ABS plastic. Since all components are OEM, the modifications appear factory-installed.

The final piece I need is the rear differential sensor and cooler, after which the car will be fully prepared for the track. My goal is to complete these upgrades by April, as we have a track day scheduled at Charlotte on April 9th.

 

[Cool66]

https://parts.ford.com/shop/en/us/axle-cooling-pump-rear-p-fr3z4c158b?pdp=y#/sectionId:854266042 Looking at the position of the connector on the oem pump im wondering if that first harness you bought was for the pump as the position of the pink connector in the middle could match the location.

Save yourself a few dollars and order from ford.oempartsonline.com.

 

[Cool66]

Just looked-up PR3Z-2C011-G at ford.oempartsonline.com. No pictures or real description but it's $114 compared to $165 from the dealership.

 

[mewstang]

https://performance.ford.com/conten...Horse-R-Homologation-Version-5-06.14.2024.pdf

Wierdly i am struggling to find the part thats linked to this number but i am now sure i am looking at the right harness.

 

[Cool66]

https://performance.ford.com/conten...Horse-R-Homologation-Version-5-06.14.2024.pdf

Wierdly i am struggling to find the part thats linked to this number but i am now sure i am looking at the right harness.

Great find. Are these pictures from your car? I located that same harness on eBay but I can't seem to locate the pigtail on the harness. I've messaged the seller to get more clarification. I plan on pulling apart my trunk and backseat area tomorrow and locate the harness currently in my car.

 

[mewstang]

Great find. Are these pictures from your car? I located that same harness on eBay but I can't seem to locate the pigtail on the harness. I've messaged the seller to get more clarification. I plan on pulling apart my trunk and backseat area tomorrow and locate the harness currently in my car.

Yea its from my car i have removed everything to add sound deadening everywhere including under carpet and headliner. If any pp non magneride is watching this thread could you please remove the rear seat bottom and take a picture of these two connectors on the right. I want to see if the main wire harness has all the pins to support the diff sensor. Im mostly interested in the connector that has the blue line as there are 8 pins from the main body harness to a 7 pin harness.
If you want me to trace any wires lmk as my car will be in this state for a couple weeks.

 

[Cool66]

https://performance.ford.com/conten...Horse-R-Homologation-Version-5-06.14.2024.pdf

Wierdly i am struggling to find the part thats linked to this number but i am now sure i am looking at the right harness.

The portion of the harness running through the port in the truck, are those for the rear abs?

I’ll be taking the rear seats and the trunk lining out tomorrow and will port the pictures.

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