This is from my 2002 FSM regarding adjusting the parking brake shoes on disc brake cars.
1) Verify the parking brake lever is in the released position.
2) Raise the vehicle.
3) Remove the rubber plug from the adjusting hole in the disc brake caliper adapter.
4) Adjust the parking brake cables. Use the first bullet point for the adjustment of the left side parking brake shoes. Use the second bullet point for the adjustment of the right side parking brake shoes.
- Insert a medium size screwdriver through the adjustment hole in the left backing plate. Position the screwdriver against the star wheel on the parking brake shoe adjuster. Using the screwdriver, rotate the star wheel downward until a slight drag is noticed when turning the rear tire and wheel assembly. Then, using the screwdriver, slowly rotate the star wheel upward, backing off the adjuster, just enough to allow the rear tire and wheel assembly to rotate without the parking brake shoes dragging. Do not back off the adjuster star wheel more than two clicks past the point of no drag. The parking brake shoe-to-drum clearance is now set.
- Insert a medium size screwdriver through the adjustment hole in the right backing plate. Position the screwdriver against the star wheel on the parking brake shoe adjuster. Using the screwdriver, rotate the star wheel upward until a slight drag is noticed when turning the rear tire and wheel assembly. Then, using the screwdriver, slowly rotate the star wheel downward, backing off the adjuster, just enough to allow the rear tire and wheel assembly to rotate without the parking brake shoes dragging. Do not back off the adjuster star wheel more than two clicks past the point of no drag. The parking brake shoe-to-drum clearance is now set.
5) Install the rubber plug in the adjusting holes of the disc brake caliper adapter.
6) Lower the vehicle until the rear tires are just clearing the floor.
7) Reach inside the vehicle and fully apply and release the park brakes two times after adjusting the parking brake shoes.
8) With the parking brake lever in the fully applied position, attempt to hand rotate each rear tire and wheel assembly to ensure that the parking brake shoes are working.
9) With the parking brake lever in the released position, hand rotate each rear tire and wheel assembly to ensure that the parking brake shoes are not dragging.
There are no pictures in the manual for this so you'll have to go by what you see under the car when doing it.