86 5000CS TQ - Diff LED 2 stuck on

Changed out a bad radio setup last night on my 86 5000CS TQ (very bad wiring job on the radio now cleaned up.) Now my Diff lock 2 LED is
staying on (and turning off the ABS). Switch is in OFF position and diff lock 1 is not illuminated. I do not believe the diff is locks because I can turn and drive the car with out issue. Any ideas in what wire I may have pulled off, etc to cause this? Thanks!
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