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Old 05-07-2019, 09:22 AM   #39
cianuro
Scooby Specialist
 
Member#: 235475
Join Date: Jan 2010
Chapter/Region: PRSIC
Location: Puerto Rico
Vehicle:
2008 WRX
Silver

Default

To update...

The car gave a hiccup last week and when I scanned it a few days later, the only code present was the C0047. Last night it completely stalled, but the Temp needle didn’t jump to High as in the video. I scanned it a few minutes after it happened, and again, the only code present was the C0047. Found a used ABS module on ebay and I’m waiting on a shipping quote. So far, everything points to the ABS module.

Side note... reading through the service bulletin again and again reminded me of a mod I did a few years back. I swapped my headlights for STi ones with oem levelers. Since my car didn’t have them from factory, I had to dig through the service manual and forums to get them working. The service bulletin mentions checking for “lighting position”, which to my best guess means the levelers. I went over the installation and saw that I took the positive signal from the fuse box under the dash, using the “tail light clearence” fuse. Going over the service manual, this fuse is tied to the ABS system.

During the install, I first followed a forum guide, but they weren’t working because 2 of the pins were inverted in the diagram shown in the forum thread. I gave it power with that wrong connection, so that might’ve caused something, but it didn’t show up until about 3 years later. After I disabled the whole leveler system, I haven’t seen the needle jump to High again, it took over a month for a stall to happen, and the hiccups have been a lot less.

There’s a procedure on the service manual to test the pins on the ABS module, so once I get and install the replacement, I’ll do the procedure and see what I find.
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