TRC/VSC lights on and flashing
2012 Toyota Hilux SR, 3.0L 1KD-FTV manual.
Did the young and dumb mistake of playing in the mud at glasshouse mountains. First red battery light started coming on intermittently, then later stayed on along with the VSC/traction warning lights. This happened around the time I shifted from back into 2H to go home. The 4WD system itself seems to be mechanically disengaging properly — the green 4WD light goes out in 2H, I’ve driven at highway speed and done tight turns with no binding, noises or other signs that the front drivetrain is still engaged (also just jacked it up and front wheels don’t move.
I thoroughly cleaned the mud from underneath and around the engine bay, cleaned the alternator, ADD actuator/connector and front/rear wheel speed sensors with contact cleaner, and checked the visible wiring. After cleaning the alternator, the battery light disappeared and charging now looks normal: 13.1 V engine off, 14.1 V at idle and 13.8 V at idle with spotlights, demister, A/C, UHF and the dual-battery system in use.
The remaining issue is that the VSC/traction warning lights are still on (the traction control flashing). The car otherwise drives completely normally in 2H. Has anyone had a similar issue after mud/water exposure on an N70 Hilux? I’m thinking the next step is to scan, I’ve seen some people have this issue and it was just silt in the front diff actuator?