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Old May 22, 2023 | 07:20 PM
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meticulousmaynard
Joined: May 2023
Posts: 6
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From: New Hampshire
Default Airbag No Power Fault

Hey all,

I eluded to this in my intro post, but my Crossfire has an airbag module code that is preventing me from getting it to pass inspection. The airbag light first came on when I had an RCM failure. I went to start the car on a cold fall morning and got a crank but no start on first attempt. With the second attempt, the engine fired right up and ran smoothly, but the dashboard was all lit up. I checked the OBD with a Snap-on Scan tool (that I no longer have access to) and found a metric ton of faults, mostly pertaining to power supply. I popped the RCM board out, soldered a few of the weak looking joints, put it back in, and was able to clear most of the codes. However, I can see a B1003 "Supply Voltage Low - Stored" and B10F6 "Speed Sensor Status Circuit Low - Stored" that don't clear.

So I followed the instructions in the service manual for troubleshooting the ORC. I checked the fuse, to make sure it wasn't blown. Fuse reads at 0 ohms. I plugged the fuse back in, turned on ignition, and I get ~12v at the fuse. I checked the power at the airbag module connector, and I get ~12v. I should note here, however, that I had to extrapolate from the service instructions, as the connector in real life was entirely different from the instructions. See the pictures below for more details. I was able to ohm out the pins on the connector back to the fuse, and found that the second pin in on the top right in the picture (the one with the tester pin in it) had continuity. When I checked that same pin with ignition on, and got ~12v. I forgot to check for a ground pin and continuity there, so I will need to double check that. Does anybody know what pin would be the ground pin? My instructions don't show one and if my connector's different, then it wouldn't be right anyways.

However, from what I've read, the ORC modules are pretty susceptible to ESD and if my RCM sent out a power surge when it popped, I think its pretty likely that the ORC needs replacement. Does this diagnosis sound right? I would like to know I'm heading down the right path before I go ahead and buy a new module and remove the center console.

Thanks!
-Bryan
 

Last edited by Valk; May 22, 2023 at 10:58 PM.
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