Mitsubishi Lancer Evolution VI. Manual — part 72
ABS –
On-vehicle Service
35B-38
6.
If the result of inspection is abnormal, correct according to the “Diagnosis Table”.
Diagnosis Table
No.
MUT-
II
display
Operation
Judgement
– Normal
Judgement
– Abnormal
Probable
cause
Remedy
01
FR valve
(1) Depress brake pedal
to lock wheel.
(2) Using the MUT-
II
,
select the wheel to be
checked and force the
Brake force
released for 3
seconds after
locking.
Wheel does
not lock when
brake pedal is
depressed.
Clogged
brake line
other than
hydraulic unit
Check and
clean brake
line
02
FL valve
checked and force the
actuator to operate.
(3) Turn the selected
wheel using brake
force tester or manual-
ly to check the change
Clogged
hydraulic
circuit in
hydraulic unit
Replace
hydraulic unit
assembly
03
RR valve
ly to check the change
of brake force.
Brake force is
not released
Incorrect
hydraulic unit
brake tube
connection
Connect
correctly
04
RL valve
Hydraulic unit
solenoid valve
not function-
ing correctly
Replace
hydraulic unit
assembly
7.
After inspection, turn the ignition switch off and remove the MUT-
II
.
REMEDY FOR A FLAT BATTERY
When booster cables are used to start the engine when the
battery is completely flat and then the vehicle is immediately
driven without waiting for the battery to recharge itself to
some extent, the engine may misfire, and driving might not
be possible.
This happens because ABS consumes a great amount of
current for its self-check function; the remedy is to either
allow the battery to recharge sufficiently, or to remove the
fusible link for ABS circuit, thus disabling the anti-skid brake
system. The ABS warning lamp will illuminate when the fusible
link (for ABS) is removed.
After the battery has sufficiently recharged, install the fusible
link (for ABS) and restart the engine; then check to be sure
the ABS warning lamp is not illuminated.
ABS –
On-vehicle Service
35B-39
ABS MOTOR RELAY CONTINUITY CHECK
Checking condition
Terminal No.
1
2
3
4
5
Power is not supplied
Power is supplied
ABS VALVE RELAY CONTINUITY CHECK
Checking condition
Terminal No.
1
2
3
4
5
6
Power is not supplied
Power is supplied
Valve relay
Motor relay
ABS –
Master Cylinder and Brake Booster
35B-40
MASTER CYLINDER AND BRAKE BOOSTER
REMOVAL AND INSTALLATION
Refer to GROUP 35A.
MASTER CYLINDER
DISASSEMBLY AND REASSEMBLY
Master cylinder kit
11
14
13
12
14
13
15
1
4
2
3
6
8
9
5
7
10
12
15
13
14
Brake fluid: DOT3 or DOT4
11
Disassembly steps
1. Reservoir cap assembly
2. Reservoir cap
3. Diaphragm
4. Filter
5. Brake fluid level sensor
6. Float
7. Reservoir stopper bolt
8. Reservoir tank
9. Reservoir seal
A
A
"
10. Piston stopper bolt
11. Gasket
A
A
"
12. Piston stopper ring
13. Primary piston assembly
14. Secondary piston assembly
15. Master cylinder body
DISASSEMBLY SERVICE POINTS
A
A
"
PISTON STOPPER BOLT / STOPPER RING
REMOVAL
Remove the piston stopper bolt and stopper ring, while
depressing the primary piston assembly.
NOTE
Shown at left is the stopper ring removal manner.
ABS –
Hydraulic Unit
35B-41
HYDRAULIC UNIT
REMOVAL AND INSTALLATION
Pre-removal Operation
D
Brake Fluid Draining
Post-installation Operation
D
Brake Fluid Supplying and Air Bleeding
D
Hydraulic Unit Checking (Refer to P.35B-37.)
15 Nm
1
2
3
4
5
2
2
Removal steps
1. Harness connector
"
A
A
2. Brake pipe connection
3. Connector bracket
A
A
"
4. Hydraulic unit assembly
5. Hydraulic unit bracket
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