FORMER “Diff’rent Strokes” star Gary Coleman is in trouble with the law – again.

The diminutive Coleman was arrested July 10 for failing to pay $400 in fines after he punched a female autograph seeker last year.

The pint-sized puncher, 30, had been stopped at a routine drunk-driving checkpoint in a Los Angeles suburb when he was found to be driving with an expired registration.

A check of Coleman’s license revealed that a warrant had been issued for his arrest.

Coleman spent several hours in the city jail before posting $26,000 for bail.

He reports back to court on Aug. 3.

Last February, Coleman received a suspended sentence of 90 days in jail after pleading no contest to allegations that he had punched 205-pound Traci Fields, who he claims became angry when Coleman refused to sign an autograph.

He was also fined and ordered to attend 52 anger management classes.