Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service 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-
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,
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-
• 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-
(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-
(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
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