Check fluid in brake master cylinder (2140)
. Fill brake master cylinder reservoir (2K478)
if low or empty.
Observe fluid level in brake master cylinder 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 brake master cylinder
. Replace or service brake master cylinder
.