Any action to enforce any cause of action pursuant to Section 2944.7 or 2944.8 shall be commenced within four years after the cause of action accrued. No cause of action barred under existing law on the effective date of this section shall be revived by its enactment.
Source:
Section 2944.10, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=2944.10..