I apologize for my new-ness and for just barging in. I've never been a part of a forum, but with this Lexus, which I LOVE, I figure I am going to need all of your expertise to get this thing code free. Yes, my check engine light, slip control light, tpms light and red triangle with "!" all stay on, all the time.
1. The TPMS are old and need replacing and reprogramming, so this is not my main concern.
2. The other lights, I have been told by the big 3 auto parts places in town, are related to a P0031 code. (upstream Bank 1 / Sensor 1 AFR Sensor heater low voltage) - checked the wiring, its good. changed the AF sensor, still same problem. NO real noticeable problems as a result of this condition, perhaps a little less fuel mileage than expected. BUT I don't want my dash lit up like a Christmas tree either.
3. SO, I decide to get the mini vci J2534 cable and then have them install Techstream V16.00.017 on my laptop, because I wanted more information, plus really wanted to disable the DRLs. undoubtedly I need a different version of techstream for the DRLs (v12 maybe?). I digress. When I run the Vehicle Diagnostic Report, below is what I get and I have no clue what to do with it besides start looking up things and checking for some bad connections or wiring possibly anywhere on the car. (Because I'm just a guy, that cant afford to take it to Lexus and just have them fix it.) Does any of this relate to the P0031 code the Auto stores are insisting is the problem? Perhaps my sensor is good, but the harness or wiring going to the sensor is bad?
I know this is a ton of stuff, and again I apologize for barging in with all the thinking out loud. I'm just looking for help, answers, direction, if any of you have any. IF not, well, I completely understand, and thanks for your time and consideration anyway.
Code
Description
Current
Pending
History
Summary
Freeze Frame\
C1201
Engine/EV Control System Malfunction
X
Icon C
N
C1241
Low or High Power Supply Voltaae
X
lconC
N
C1439
Steerina Angle Sensor Initialization Incomplete
X
lconC
Y
U0073
Control Module Communication Bus Off
X
Icon C
N
U0123
Lost Communication With Yaw Rate Sensor Module
X
Icon C
N
U0124
Lost Communication With Lateral Acceleration Sensor Module
X
lconC
N
U0126
Lost Communication With Steering Angle Sensor Module
X
Icon C
y
Like I said, Any help will be much appreciated, and I do thank you for all your time, spent on this.
Thanks,
pawly
IMG_1475.heic