Here I go again. After receiving the same codes a month ago and clearing them my 850 lit up it’s CEL once again with the same codes plus on and the odometer stopped working! I was on a road-trip to SoCal and while driving around town for a day or two the light came on and I received the following codes:
A1: 1-1-1
A2: 3-2-5, 2-4-1
A3: 4-4-4, 2-1-3, 2-1-4, 1-4-2
B1: 3-2-5
After resetting my ECU with a result of the CEL reappearing right after tightening the terminal, and starting the car, I drove for 15 mi or so running an errand and turned the car on to find the light had disappeared. That only lasted until the next stop and has been on ever since. The fricken’ odometer stopped working!
I did a bit of research on the board and what I found was an article pertaining to A3: 2-1-3, 2-1-4 stating that these codes are a result of faulty rear R/L ABS sensors. Erwin suggested cleaning the module. Haynes makes this look like a pain in the @$$, am I wrong? If I’m not roughly what is the cost of labor.
After more doddling around this site I found a post (Mrsha on Tue Jun 11 2002) saying that these two codes mean throttle position too high and ignition rpm sensor sig. Erratic or faulty. So confused, please help?!
Any ideas on why the odometer stopped working, the other codes (is this all a chain reaction) or why the CEL cleared itself for about 20 minutes? You can sure believe I’d appreciate the help! –Stu.
--94 854 w/102,000mi