I have a 2011 LR 2 battery died overnight now no start truck cranks got spark no fuel injector pulse have pressure at rail. Getting P2103 throttle body circuit high. Can anybody help me with why no injector pulse. All ready check the alarm is good reset crash mode just in case. Don’t know if P2103 will cause shut down. Also have reduced performance light on instrument cluster and HDC not communicating. Thanks for any input.