I also have a 2000 ranger , and also a code 19, is there a quick fix??? thx

 

Lamp Fault Code 19/DTC B1231 — RCM Crash Data Memory Full

When the air bags are deployed during a collision, the restraints control module (RCM) will flash a lamp fault code (LFC) 19 on the air bag indicator and store a diagnostic trouble code (DTC) B1231 in memory. The LFC 19 and DTC B1231 indicate that a crash has been recorded by the RCM.

Possible Cause: Crash data memory full is caused by a crash event that deployed the air bags.

WARNING: The restraints control module (RCM) orientation is critical for correct system operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) has been involved in a collision in which the center tunnel area has been damaged, inspect the mounting and bracket for deformation. If damaged, the RCM must be replaced whether or not the air bags have deployed. In addition, make sure the area of the RCM mounting is restored to its original condition.

WARNING: A new RCM must be installed if the air bag modules have deployed.

WARNING: Clearing DTC B1231 will potentially remove all records of the crash event.

 

So no reset for the RCM? only replacement?

 

That's a good question. I don't know for sure, but it doesn't appear that resetting the RCM is an option. There is nothing about a reset option in the Ford Manual. There aren't even any pinpoint tests for LFC 19, it just says "INSTALL a new RCM".

 

From what I've read, the RCM's Crash Data Recorder cannot be read or erased at the consumer or dealer level. This is to preserve the data for investigation and/or litigation. Standard procedure is to replace the RCM when the airbags deploy.

On the other hand, it's not at all clear why the shop manual has this warning:

 

Those are good observations Bob.

Do you know if the RCM is something that needs to be "synchronized" with the rest of the Module Communications Network when a new one is installed? I noticed that the RCM is on the list of modules that make up the network.

 

As far as I know, you just plug it in and go. The RCM is in the network so it can record a few key parameters when the bags are deployed. Also for diagnostics through the DLC.

 

nybody know what a code 34 is?
Thanks John

 

Pinpoint Test L: LFC 34/DTC B1934 — Driver Air Bag Circuit Resistance Low

Normal Operation

The restraints control module (RCM) monitors the resistance of the driver air bag ignitor by measuring the resistance between pins 3 and 4. If the RCM detects low resistance between these pins, it will store a diagnostic trouble code (DTC) B1934 in memory and flash a lamp fault code (LFC) 34 on the air bag indicator.

Possible Causes - Driver air bag low resistance could be caused by:

- a short in the air bag sliding contact windings.
- a short in the wiring harness.
- a low resistance in the driver air bag module.
- an RCM internal concern.
- a shorting bar or camming beam concern in the connector.

 

Thanks for the info Joe, I'll check it out this weekend.
John

 

Are air bag codes self clearing when the problem has been fixed? I didn't find any bad connections but I found corrosion in the column like the windows had been left down. I had a spare column so I just swaped it out. Still had the code. I also tried another air bag out of a different truck and still have the code. Any ideas? I want to sell this truck soon but hate to sell it with codes.
John

 

I finally replaced my RCM today with one I got off of eBay from a reputable source (note I posted in this thread over a year ago). Now that the RCM is good, I'm getting a 3-5. From my search, it looks like nobody on the forum has had this yet.

Can anybody tell me what the problem is, and how I can go about fixing it?

 

Lamp Fault Code 35/DTC B1935 — Passenger Air Bag Circuit Resistance Low

Normal Operation

The restraints control module (RCM) monitors the resistance of the passenger air bag ignitor by measuring the resistance between pins 6 and 7. If the RCM detects low resistance between these pins, it will store a diagnostic trouble code (DTC) B1935 in memory and flash a lamp fault code (LFC) 35 (or higher priority code if one exists) on the air bag indicator.

Possible Causes

Passenger air bag low resistance could be caused by:

wiring, terminals, or connectors.
a low resistance in the passenger air bag module.
an RCM internal concern.

 

Thanks Joe, I'm pretty sure I know what the problem is now.

 

this is a super old thread, but i was hoping for some help. Installed a new pioneer in dash dvd today, washed the truck, and went to take pics of it, and noticed the light was flashing. came home and read up on google, and counted the flashes, im getting 2-9???? I read all these pages and didnt see any 2-9?? HELP PLEASE!!! i did pull the seat plugs and blew them out and plugged back in, and also disconnected battery for 10 min, but still flashing!

 

What year is it? Guessing from your user name might make it a 2003 but my info says that there is no code 2-9 for 2003 Ranger.

 

yea, 2003. ill check it again today, but i swear it flashed 2x, then pause, then 9x....ill check and let you know

thanks

 

Hope this isn't a hijack.


If the air bag light is on only because the driver side underseat connector needs to be jiggled, and no other reason, does that mean the entire SRS system is disabled? or just that underseat sensor.

FWIW I didn't find a 2X9 code in my list of airbag fault codes.

 

It's definitely 2-9. 3 sets of 2-9 flashes the. Stays on. Also my dome light isn't working and speedometer, but rpm n all other gauges are.

 

whenever that light is on the whole system is disabled...so if you were to have an accident the airbags wont deploy even of the accident is severe enough to need them

 

x2 the entire system should shut down to prevent accidental discharge of the bags

 

Thanx.

 

anybody got any ideas on why the speedometer and dome light dont work? i checked all the fuses yesterday, but they were all good. this is like my 10-15th head unit ive installed so i dont know how i could of messed it up. did everything to the book.

 

update...today was my day off so i decided to figure out what is wrong with the truck. I checked all the fuses, and got to thinking, maybe i put a fuse in the wrong spot when i was trying to find the fuse i blew installing the new head unit. so i took a extra fuse and started plugging holes, and bam, dome light kicked on. started the truck up, drove around the block, and speedo worked, dome light worked, everything worked and no air bag light. i guess 2-9 means missing fuse.

 

Digging up an old thread. Hopefully someone can help with this code. Last night, my air bag light started flashing 3-2. My truck is a 2000 XLT 4WD. Anyone?