Safety Restraint system fault Codes RMC2_a355 & RMC2_a002

[Tayne]

I am new to Tesla. I bought a Salvage Model 3. I am fixing it. Finally after months and thousands of dollars I am finally down to 2 codes. I am ver surprised a full list of codes and possible causes are not found anywhere. So any help anyone can provide would be helpful. I replaced the airbags, srs module, steering column, had the seatbelts rebuilt and pretentioners rebuilt. Spent $5,700 at Tesla replacing wire harnesses and such. That is all of the background info. Here are my final codes
Safety Restraint system fault
RMC2_a002
RMC2_a355
I have unplugged the seatbelt tensioners and such on the drivers side. They each threw different codes so at least I know those parts are not throwing the codes. But their has to be a master list of codes and which parts are part of these codes. Any help would be appreciated. I have another appointment with Tesla, but hope I can figure out these without spending another diagnostic fee.

 

[Tayne]

 

[Tayne]

Tesla left the car in service mode when I got some parts and took a pic of the screen. Looks like RCM2_a355 is the left front impact sensor.
RCM2_ a002 is the airbag not armed. Not sure if fixing the sensor will fix a002. But I did notice the center sensor is not mounted. The bracket is missing. My new beam didn’t have the mount. I expect that is one of the issues.

 

[evrepair]

Yes fixing the sensor should take care of both problems.

 

[Tayne]

Just finding it hard to find the center mount without buying another Beam. Tesla doesn’t sell that part. And for some reason the new one I bought on EBay didn’t have it. I have seen other new ones on there that also don’t have it.

 

[evrepair]

Which mount are you talking about? Can you post a picture?

 

[Tayne]

 

[Tayne]

I finally got the above bracket and installed the sensor. However I only got 1 replacement sensor and need another one to fix the error. Heading to Tesla on Monday to buy another sensor. To see if this will fix it.

 

[Tayne]

Well now I am a bit confused. I see 2 different types of brackets. One is black and one silver. And the parts list shows 2 different sensor part numbers. The alignment oblong peg has a different orientation on each of the sensors.

 

[Tayne]

Sensor part numbers
1095699-00-A
1473445-00-A
Here is a picture of the black mount.
Not sure which mount I need or which sensor where.

 

[Tayne]

1095699-00-A ACCEL SENSOR, KEY-C
1473445-00-A Single Axis, 480g, Crash Accel, Perp.
Per codes I think 143445 goes in the front center position. 1095699 fits in the front left position.

 

[Tayne]

1095699-00-A ACCEL SENSOR, KEY-C
1473445-00-A Single Axis, 480g, Crash Accel, Perp.
Per codes I think 143445 goes in the front center position. 1095699 fits in the front left position.

Update I put a new sensor in the front right. It cleared the a355 code. But now it shows code a352. I put the 1473445 sensor in the center, maybe it needs the 1095699 part.

 

[rrlevy]

Hi Tayne,

Did you get the RCM_a003 alert to disappear?

I have this warning appearing it on a 2022 Model X Plaid but no other errors.

Trying to find out what it is

 

[pedrorito]

Hi Tayne,

Did you get the RCM_a003 alert to disappear?

I have this warning appearing it on a 2022 Model X Plaid but no other errors.

Trying to find out what it is

I also have RCM_a003 code on my Model 3 LR. Did you find out what was the error cause? Thanks