Hello I hope someone can help me figure out what this DTC code means that just popped up in my '02 Grand Cherokee. It's a 4.0L engine with the Selec-Trac NV 242 transfer case and the 42RE transmission. I just recently dropped the transmission pan changed the gasket, filter and oil about 4 months ago. Coming back from the store earlier today the engine raced to about 5500 RPM before switching into second gear. The DTC code that came up is P0837 and this is the explanition I found on wjjeeps.com
Four Wheel Drive (4WD) Switch Circuit Range/Performance
Four wheel drive (4WD) muxed switch input detected in invalid or irrational switch state (switch status provided to engine module from transfer case module during 4WD low gear engagements)
Does anyone know what this means, any help would be greatly appreciated.