When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Car is driving me crazy. Drove perfect yesterday. Get in the car this morning and bam. Tons of errors. Car is too temperamental. I believe the FRM is bad or needs to be reprogrammed. Does anyone know what it may cost?
I can get rid of them, but they come back immediately. I will park it, pull the module out and inspect it later. I’m wondering if I should or shouldn’t disconnect the battery to do this.
So I pulled the frm module this weekend and there are no signs of water damage at the pins or connectors. I opened the module up and there are no signs of water intrusion at all.
You may want to focus entirely on code 9CAA as it may explain all of your FRM problems. A blown 40A fuse (In A4010 Junction box, behind kick panel trim in right footwell?) might be the prime suspect. Click this link.
Last edited by Maybe, maybe not; May 13, 2024 at 12:13 PM.
Pulled them out and ran a continuity test with a meter. All test good.
It's more informative to voltage test fuses. Turn the key on and then measure voltage to body ground at both of the top test tabs of each fuse, especially the footwell fuses. All fuses should have near battery voltage on both tabs.
Ok. So you want me to test the voltage on both of the little tabs on fuses #5, #47 and #48. Correct? I’m basically checking voltage across the fuses and comparing it to the battery voltage itself.
Ok. I’ll check the voltages tomorrow when I get home from work. 5,8,47 and 48. Thanks for all the help. I wanna make sure if it’s the FRM before I have to ship it out to get reprogrammed.
Based of code 9CAA, you may find that the problem is a failure of voltage from one of the 4 footwell fuses to reach the footwell module rather than a faulty footwell module.
If the problem is a broken wire, then running a new wire could be a solution as would repairing the broken wire. There are other possibilities, but additional electrical troubleshooting should reveal both the problem and fix.
So it still could be a possibility of a corrupted footwell. Or maybe a JBE issue. Or getting power to the 30b. I guess the only way to find out is start chasing down all the electrical. Seems weird that everything was fine the day before. Then it sat overnight in the pouring rain ( which it has before). I started the car the next morning and it was fine. As soon as I turned the headlights on because it was still raining, she started chiming atleast 10x. Really over engineered.
As mentioned, based of code 9CAA, I'm compelled to focus on a failure of voltage to reach the FRM from one of the four FRM fuses. In this scenario, the problem could be caused by:
1) A bad FRM fuse or bad junction box fuse panel (A4010)
2) A broken or shorted power wire between A4010 and the FRM.
3) A bad or corroded terminal in a FRM connector carrying one or more of the 4 power wires.
4) A bad FRM terminal that connects to one of the four power wires.