Diagnostic Technique No. 2 — Master Cylinder Bypass Condition—Check

1. Check fluid in master cylinder. Fill reservoir if low or empty.

2. Observe fluid level in reservoir. If after several brake applications the fluid level remains the same, measure wheel turning torque required to rotate wheels with brakes applied as follows:
   • Place transmission in NEUTRAL and raise vehicle on hoist. Refer to Section 00-02.
   • Apply brakes with a minimum of 445N (100 lb) and hold for approximately 15 seconds. With brakes still applied, exert torque on front wheels to 101 Nm (75 lb-ft). If either wheel rotates, inspect internal components of master cylinder. Replace or service master cylinder.