BSD harness problems (Blind Spot) can't see left sensor?

[rollerbones]

I received the harness from Infotainment to wire BSD on my 2022 Wrangler. I purchased new mirrors and new BSD sensors/harness from Mopar and put in my LED mirrors so that is brand new. I installed the harness per infotainment directions.
Jscan I set:
BSM - Active
BSM Left Bline - Active
BSM / LBSM - Active
RBSS/RBSM/RBSS - Active
Blind spot alert menu - Set
Radio Blind Spot menu - Set
Something missing there? I can see the Right module within jscan but NOT the left side no matter what sensor I put there.

I have 5 errors all relating the the Left Blind Spot Sensor. I have swapped sensors from the right to left, I have swapped Light harness from right to left and have also tried sensors from my wife's Jeep that work fine. Attached is the errors I get no matter where the modules are at.
Any idea on what to check? Infotainment will NOT help because they said to check with hardware manufacture but I pretty much eliminated that since I have swapped both sides and even with another vehicle.
They will not help my check for ground faults or other issues said they don't make the cable "We purchase these harnesses from one of our vendors. We do not have this information." I guess they dont make these in-house like it seems from the website. There really is not much to the cable at all, pretty easy to follow.

Any ideas?

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[rollerbones]

68454896aa - BSD modules
68376502aa - LED tail lamp harness

 

[Mc2472]

I did this a few weeks ago with their harness and didn't have any problem. I also bought new mirrors and new modules. I already had the LED tail lights. The only thing I did with JSCAN was turn on Blindspot on the radio settings I didn't touch anything else and it works fine

 

[GATORB8]

In stock configuration, CAN comms are separate by side at the Star Connector.

I'd check there. B&C shortcut to the right sensor.

 

[rollerbones]

Thanks, I did set all settings back to factory for BSD then enabled just like you did above but still have the same errors.

Thanks for the diagram, I also think it may be something with the bus. I can't see left module even within jscan (can see the right one). The right module bus ties to the left module bus then to the hs bus box. I will check from the left sensor connector to the end of the green connector for tone.

harness looks good but I will check it tomorrow.

Thanks

 

[rollerbones]

Looks like I have good signal to all 6 pins of the bed module connector. I tested from the can bus connection then from the main harness and all seem correct.
How does the computer know which is left and which is the right side module? I dont see anything that pin wise that would tell which was which. The can would just see both modules, how does it know right/left?

 

[GATORB8]

Looks like I have good signal to all 6 pins of the bed module connector. I tested from the can bus connection then from the main harness and all seem correct.
How does the computer know which is left and which is the right side module? I dont see anything that pin wise that would tell which was which. The can would just see both modules, how does it know right/left?

Good question, Alldata says that the left sensor is the master, but the left and right appear to be the same part, so I'm not sure how it knows.

Blind Spot Module (BSM) / Blind Spot Sensor (BSS)
Component Index

The BSM system used in this vehicle has two control modules, each internal to the sensor mounted on the inside of the tail lamp assembly. The RBSS is mounted to the backside of the right tail lamp assembly and can be serviced separately from the lamp assembly. The LBSS is mounted to the backside of the left tail lamp assembly and can be serviced separately from the lamp assembly.
Each of the sensors are independent control units.
Each sensor receives a fused ignition RUN power output.
Each sensor provides a PWM circuit to its respective side mirror to activate the LED BSD icon.
Each sensor is also controls the dimming light strategy for the LED BSD icon for each mirror.
Each sensor activates a bulb-check for approximately 0.6 seconds upon power up for each mirrors LED BSD.
The LBSS is the master configuration node of the BSM system.
The LBSS learns the vehicle transmission type through a bus CAN-IHS bus signal gated from the BCM.
If the sensors are blocked, the LBSS is responsible for sending a signal to the IPC to enable the "Blind Spot Temporarily Unavailable System Blocked" message as well as activating both BSD LED icons in the mirrors.
The LBSS is responsible for sending the directional chime request for each chime warning event using the signals.
The detection zone covers a zone approximately one lane on both sides of the vehicle 3.2 meters (10 ft.) and extends from the driver’s seat to between 3 and 7 meters (10 ft.) behind the rear fascia depending of the speed of the vehicle.
Inputs
Fused ignition run/accessory power output.
Vehicle transmission type via the CAN-IHS gated from the BCM.
Outputs
PWM circuit to each sensors respective side mirror to activate the LED BSD icon.
Dimming light strategy for the LED BSD icon for each mirror.
Indication strategy to the IPC to enable the warning indicator.
Directional chime request for each chime warning event.

 

[rollerbones]

I may of found something. Within the right module in JSCAN there are addresses assigned. Looks like on my wife's factory the Right is 00 and left may be 000f that would then tell the bus which side each is on. On mine with the 2 new sensors I think they are both assigned 00 (default?)so no matter which module I remove or swap it will only show a right sensor. I am guessing I need to match the address and will try that after lunch.

 

[rollerbones]

Ok, I try to give it the new hex number and it says ok but never changes. Any one know if there is an "adaption" of a module to the right or left side?

 

[rollerbones]

I have disabled the Blind spot until I can figure out how to set the hex on each sensor. What's interesting, while disabled, the light on the mirrors stay on unless I hit the brake. If I use the turn signal the mirror flashes with it. (the correct side)

 

[rollerbones]

Just tried a new sensor on the left side and I am getting the same errors. If I disconnect either sensor both allow me to access the "right" side in jscan. It tells me left is not installed. I just don't know how to set one to right and other to left?

 

[FireAnt21]

Curious is that the correct spot for can ihs. I plugged mine into one behind the rear driver seat and it’s a green module. Don’t know if that matters or not

 

[FireAnt21]

Just to be clear mine isn’t working but I do see left and right modules. Doing a bit of rewiring today.

 

[GATORB8]

Curious is that the correct spot for can ihs. I plugged mine into one behind the rear driver seat and it’s a green module. Don’t know if that matters or not

 

[rollerbones]

Yes behind the drivers back seat is the correct module to plug in to. It can go into any open spot on that one. Connector is green and the bus is White.
The pic below is my module behind drivers side rear seat.

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