[j3rf]

More than likely the AWD solenoid is starting to have issues. Up to you if you want to address it now or in the future if the DTC sets again. Circuit High means there is voltage left where there shouldn't be any, indicating possibly an open circuit (usually the solenoid) or more unlikely a power supply short circuit allowing excessive voltage. Don't see a lot of internal wiring harness issues since they're sealed inside the CVT assembly. Wouldn't bother wasting time cleaning connectors trying to chase an issue with an internal valve body solenoid.

 

[j3rf]

@badman9

1. Yes mostly high resistance with intermittent concerns about codes being set. Don't think I have seen one fail completely with an open solenoid internally.
2. I have no experience with aftermarket solenoids unfortunately.
3. Lights illuminated mostly, but also AWD issues due to the solenoid not locking up when the TCM is commanding it to.

 

[j3rf]

issues with related systems like the brake pedal/light switch potentially causing the error cascade

@badman9

No, not related to brake pedal switch at all. I suppose it is possible and you would definitely want to eliminate any other circuit concerns before concluding the solenoid inside the valve body is the problem. ALL the solenoids receive power from the TCM and ground internally inside the CVT assembly.

 

[j3rf]

Highly recommend performing a relearn on the CVT when doing fluid change or valve body (or in this case solenoid) replacement.

 

[j3rf]

Nice work. I've taken a few apart, never had to put it back together though. Mostly after the small long spare bolts that are quite useful outside the valve body. Can't recall the grounds breaking off though, so interesting problem but not hard to fix. Did you end up finding a scan tool to do the relearn as well?