LOS ANGELES—The Los Angeles County sheriff said detectives have determined what caused Tiger Woods to crash his SUV last month in Southern California but declined Wednesday to release details, citing unspecified privacy concerns for the golf star. Woods suffered serious injuries in the Feb. 23 crash when he struck a raised median around 7 a.m. in Rolling Hills Estates, just outside Los Angeles. The Genesis SUV he was driving crossed through two oncoming lanes and uprooted a tree on a downhill stretch that police said is known for wrecks. Woods is in Florida recovering from multiple surgeries. Sheriff Alex Villanueva has been criticized for his comments about the crash, calling it “purely an accident” and saying there was no evidence of impairment. Woods told deputies he did not know how the crash occurred and didn’t remember driving. He was unconscious when a witness first approached the mangled SUV. A sheriff’s …