Quote:
Originally Posted by Mack1611
Why not try the zero point, only takes a paperclip?
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Unfortunately, not for the 2020 model, as pointed out here:
OBD-II change in 2020 - Zero Point Calibration Issue
And here:
Quote:
Originally Posted by JRLTRD
I have come to the conclusion that the instructions are for years prior to 2020 since my 2020 does not have any connectors in the T12 slot, pictured below. Now what?
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But this thread may be discussing several different issues. Really need to know which codes were being thrown.
For PCS malfunctions after a lift, they could be caused by issues with
- the ABS sensor wiring/system (did the ABS wires get stretched?) ,
- alignment (particularly if UCAs are changed, and vehicle was driven with steering wheel no longer centered)
- TSS leveling
I've had experience with the first two. After replacing ABS wire, many of my PCS flashing lights went away. I never got codes, because I was sure of the problem I created by stretching a wire
![Smilie](https://www.toyota-4runner.org/images/smilies/smile.gif)
. This did not require code clearing or dealer service. Replace the wire, drove the car, problem cleared.
For the ZPC related codes, I took it to an alignment shop that had a modern alignment system. That system walked the tech through the 3 minutes worth of steps needed to do the ZPC (including the steering wheel center and downhill assist setting), and everything was set.
For TSS - perhaps I've been fortunate. I've done an ~3" lift on a KDSS 4Runner, and as of yesterday added a front bumper with a high bull bar. Neither of those things has caused TSS codes. Knock on wood.
Hope this helps.