1. Using vernier calipers, measure the thickness of the lining at a rivet head on both sides.
Thickness
0.3 mm {0.012 in} min.

2. Measure the clutch disc runout using a dial indicator.
Runout
0.7 mm {0.028 in} max.

Clutch cover inspection
Clutch release collar inspectionMazda 6 Service Manual: Glossary of Terms
Tire Placard:
A label indicating the OE tire sizes, recommended inflation pressure, and the maximum weight the vehicle can carry.
Tire Identification Number (TIN):
A number on the sidewall of each tire providing information about the tire brand and manufacturing plant, tire size, and date of m ...
Mazda 6 Service Manual: Clock spring inspection
1. Remove the clock spring.
2. Inspect for continuity between the clock spring terminals using an
ohmmeter.
If not as specified, replace the clock spring.
Note
When the vehicle-side connector of clock spring is disconnected,
the terminals 1A,1B, 1C and 1D are shorted to prevent ...