Your instrument cluster lights were not illuminating at startup or while driving, because the last guy who was trying to sell the vehicle gave up and removed the IC and cut the leg of the LEDs for the 4x4 light and the abs light.... But good job on ya for resolving ur issueHi. 4x4 does not work on my escape/euro maverick. Fault code U2023 is permanent. ABS and 4x4 warning lights are never lit, not even when starting the car. (this bugs me for some reason) O/D light does also never light up. Jacked the car up and checked ABS tone rings, all ok. Tester gives nominal impulse readings from all wheels, so sensors must be ok too. Checked all wiring and connectors from underneath the car and all looks ok, including wires going to the rear diff. To my understanding, U2023 code refers to a CAN bus issue between module and node. What should I check next and does anybody know a solution for this problem? Thanks! P.S. I've tried searching the internets and this forum, but got nothing that would help me. a grand total of nobody has posted what caused this issue and how they fixed it, as usual.