Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 464

CL-31

Clutch Pedal

CLUTCH SYSTEM

7) Turn further in the direction that will shorten the

push rod (arrow direction shown in figure) by 270°.

8) Check that the clevis pin moves smoothly by

moving it in the left and right directions.

9) Tighten the push rod lock nut.
Tightening torque (Push rod lock nut):

T: 10 N·m (1.0 kgf-m, 7.4 ft-lb)

10) Depress and release the clutch pedal two or

three times to ensure that the clutch pedal and re-

lease lever operate smoothly. If the clutch pedal

and release lever do not operate smoothly, bleed

air from the clutch hydraulic system. <Ref. to CL-

26, Clutch Fluid Air Bleeding.>

11) Measure the clutch pedal full stroke length

again to ensure that it is within specifications. If it is

not within specifications, repeat adjustment proce-

dures again from the beginning.
Clutch pedal full stroke:

STI model

130 — 135 mm (5.12 — 5.31 in)

Except for STI model

135 — 140 mm (5.31 — 5.51 in)

12) Push the release lever until the operating cylin-

der push rod retracts. Make sure that the clutch flu-

id level in the reservoir tank increases. If the clutch

fluid level increases, the hydraulic clutch is properly

adjusted. If the fluid level does not increase or the

push rod does not retract, replace the master cylin-

der with a new part. <Ref. to CL-22, Master Cylin-

der.>

13) Push the release lever until the operating cylin-

der push rod retracts. Check that the clutch fluid

level in the reservoir tank increases.

14) If the clutch fluid level increases, hydraulic

clutch play is correct.

15) If the clutch fluid level does not increase or

push rod does not retract, readjust the clutch pedal.

(A) Accelerator pedal
(B) Clevis

(A) Clevis pin
(B) Snap pin

(C) Push rod

CL-00600

(B)

(A)

CL-00226

(A)

(B)

(C)

T

(A) Push rod
(B) Release lever

(C) Operating cylinder

(A) Push rod
(B) Release lever

(C) Operating cylinder

CL-00663

(A)

(B)

(C)

CL-00663

(A)

(B)

(C)

CL-32

Clutch Pedal

CLUTCH SYSTEM

16) Check the fluid level using the scale on the out-

side of the reservoir tank. If the level is below “MIN”,

fill fluid up to “MAX” level.
Recommended clutch fluid:

New FMVSS No. 116 DOT3 or DOT4

(A) Reservoir tank
(B) MIN. level

(C) MAX. level

MIN

MAX

( A )

( C )

( B )

CL-00567

CL-33

Clutch Switch

CLUTCH SYSTEM

11.Clutch Switch

A: REMOVAL

1) Disconnect the ground cable from battery.

2) Remove the instrument panel lower cover.

3) Disconnect the connector from the clutch switch.

4) Remove the clutch switches.

B: INSTALLATION

1. CLUTCH SWITCH (CRUISE CONTROL)

1) Move the clevis pin of push rod to left and right,

retain it at the position where it moves smoothly,

and measure the clutch pedal stroke.
Clutch pedal full stroke A:

STI model

130 — 135 mm (5.12 — 5.31 in)

Except for STI model

135 — 140 mm (5.31 — 5.51 in)

Tightening torque:

T: 8 N·m (0.8 kgf-m, 5.9 ft-lb)

2) If the clutch pedal stroke is out of specification,

adjust the stroke. <Ref. to CL-30, ADJUSTMENT,

Clutch Pedal.>

3) Connect the clutch switch connector.

2. CLUTCH START SWITCH

1) Fully depress the clutch pedal and hold it.

2) Install the clutch pedal plate and clutch switch so

that the gap between them is 1.1 — 2.1 mm (0.04

— 0.08 in), and then tighten the lock nut.
Tightening torque:

8 N·m (0.8 kgf-m, 5.9 ft-lb)

3) Connect the clutch switch connector.

4) Make sure that engine does not start with clutch

pedal not depressed.

5) Make sure that engine starts with clutch pedal

fully depressed.

CL-00225

T

A

(A) Plate
(B) Clutch start switch

(C) 1.1 — 2.1 mm (0.04 — 0.08 in)

(A)

(B)

(C)

CL-00104

CL-34

Clutch Switch

CLUTCH SYSTEM

C: INSPECTION

1. CLUTCH START SWITCH

1) Perform the following inspections. If the clutch

start switch does not operate normally, adjust the

switch, and check it again. <Ref. to CL-35, AD-

JUSTMENT, Clutch Switch.>

• Make sure that engine does not start with clutch

pedal not depressed.

• Make sure that engine starts with clutch pedal

fully depressed.

2) When the clutch start switch does not operate

normally even if it is adjusted, check the clutch start

switch for continuity.

(1) Remove the clutch start switch. <Ref. to CL-

33, REMOVAL, Clutch Switch.>

(2) Measure the resistance between terminal 1

and 2 of the switch. If the resistance is not at the

standard value, replace the switch.

(3) Check that the switch is turned on and off in

Dimension L.

Dimension L:

4 — 5.5 mm (0.16 — 0.22 in)

2. CLUTCH SWITCH

1) Check the clutch switch for continuity.

(1) Disconnect the connector of clutch switch.

(2) Measure the resistance between terminal 1

and 2 of the switch. If the resistance is not within

the specification, check the clutch stroke and in-

stallation condition, and check the clutch switch

again.

2) When the clutch switch does not operate nor-

mally even if the clutch stroke and installation con-

dition are normal, check the clutch switch for

continuity.

(1) Remove the clutch switches. <Ref. to CL-

33, REMOVAL, Clutch Switch.>

(2) Measure the resistance between terminal 1

and 2 of the switch. If the resistance is not at the

standard value, replace the switch.

Condition

Terminal No.

Specified

resistance

ON

No. 1 — No. 2

Less than 1 Ω

OFF

No. 1 — No. 2

1 MΩ or more

(A) ON
(B) OFF

CL-00102

1
2

CL-00799

L

(B)

(A)

Condition

Terminal No.

Specified

resistance

When clutch pedal is
depressed

No. 1 — No. 2

1 MΩ or more

When the clutch pedal
is not depressed

No. 1 — No. 2

Less than 1 Ω

Condition

Terminal No.

Specified

resistance

ON

No. 1 — No. 2

Less than 1 Ω

OFF

No. 1 — No. 2

1 MΩ or more

CL-00084

2 1

CL-00084

2 1