She showed up around 5:30 a.m. and entered the facility through the back entrance to avoid all the media attention.
Thursday, Lohan was sent home for showing up 40 minutes late. She and her publicist said the tardiness was due to confusion regarding what entrance to go through.
"The volunteer center allowed her to come back today," said Los Angeles County Coroner's Office spokesman Ed Winter. "She's been ordered to be on time for her service and if she has any other problems, then she'll be removed from the program."
Winter said Lohan's duties at the morgue will be vacuuming, sweeping and other custodial and janitorial responsibilities, including cleaning toilets and emptying trash bins. Winter said the actress will not have any contact with bodies at the morgue.
Winters also said Lohan will get a 30-minute lunch break but will not be able to leave the premises. Her day will end sometime between 3:30 p.m. and 4 p.m.
Workers and others doing community service at the morgue could face disciplinary action if they take pictures of Lohan, Winter said. So far, no cellphones have been confiscated.
According to the coroner's office, Lohan had an assistant bring her an In-N-Out hamburger and she ordered 36 cupcakes from Magnolia Bakery for the staff and volunteers.
Lindsey got her lunch, but the cupcake delivery man was turned away.
A representative for Lohan said it's unfortunate the actress's well-intentioned actions were not taken in the spirit in which she intended, which was to show she was sorry for showing up late Thursday.
Superior Court Judge Stephanie Sautner revoked Lohan's probation during a hearing Wednesday after the judge learned the actress had been fired from doing community service at a women's shelter.
Sautner ordered Lohan to complete 360 hours at the center and 120 hours at the morgue in April as punishment for taking a $2,500 necklace without permission.
Lohan later pleaded no contest to a misdemeanor charge related to the necklace and served 35 days on house arrest.
Lohan must complete 32 hours of service by her next court hearing Nov. 2, or she could be sent back to jail.
It is Lohan's second time doing service at the morgue. She initially completed a program there after a pair of drunken driving arrests in 2007.