Mitsubishi Lancer Evolution VI. Manual — part 61
REAR AXLE
– On-vehicle Service <Vehicles with AYC>
27-38
Waveform Observation Points
Symptom
Probable cause
Action
Waveform amplitude is too small, or no
waveform.
Defective wheel speed sensor
Replace sensor.
Waveform amplitude varies greatly. (No
problem if the smallest amplitude is 100
Excessive axle hub lateral and radial runout
Replace hub.
problem if the smallest amplitude is 100
mV or more)
Poor AYC-ECU grounding
Repair.
Noise on waveform or disturbed
waveform
Open-circuited sensor
Replace sensor.
waveform
Open-circuited harness
Repair harness.
Improperly mounted wheel speed sensor
Correct sensor installation.
Missing or collapsed ABS rotor tooth
Replace ABS rotor.
Caution
Since the wheel speed sensor cable follows the movement of the front or rear suspension, it
may be open-circuited only when the vehicle is run on rough roads and not on ordinary road.
The wheel speed sensor output voltage waveform should therefore be checked also by rocking
the sensor harness so that driving on rough roads may be simulated.
ACTION WHEN BATTERY RUNS OUT
When the engine is started using a booster cable where the
battery has completely run down and you attempt to start
the vehicle without waiting for the battery to recover a certain
charge, the engine can misfire and you just cannot start to
move it. In such cases, charge the battery sufficiently; or,
remove the AYC fusible link from the engine compartment
relay box to make AYC inactive before attempting to start
the vehicle. When the fusible link is removed, the AYC warning
lamp lights up. After the battery has been recharged, fit the
fusible link back again and start the engine to ensure that
the AYC warning lamp is off.
AYC fusible link
REAR AXLE
– Hydraulic Unit <Vehicles with AYC>
27-39
HYDRAULIC UNIT <VEHICLES WITH AYC>
REMOVAL AND INSTALLATION
Caution
(1) When connecting the return hose and suction hose, do not apply lubricant.
(2) No foreign matter should be allowed in the hydraulic piping and joints.
Pre-removal Operation
D
Trunk Side Trim Removal
D
Hydraulic Piping Fluid Draining
Post-installation Operation
D
Hydraulic Piping Fluid Filling and Bleeding
(Refer to P.27-32, 34.)
D
Trunk Side Trim Installation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
12 Nm
4
12 Nm
18 Nm
12 Nm
12 Nm
18 Nm
34 Nm
34 Nm
Removal steps
1. Dust guard
2. Suction hose and return hose con-
nection
3. Hydraulic unit hose assembly con-
nection
4. Hydraulic unit and bracket assem-
bly mounting bolt
"
C
A
5. Hydraulic unit and bracket assem-
bly
A
A
"
6. Hydraulic unit
7. Hydraulic unit bracket
8. AYC harness
9. Hydraulic unit bracket
10. Hydraulic unit hose assembly
"
B
A
11. Return hose
"
B
A
12. Suction hose
"
A
A
13. Grommet
14. Oil reservoir
REAR AXLE
– Hydraulic Unit <Vehicles with AYC>
27-40
REMOVAL SERVICE POINTS
A
A
"
HYDRAULIC UNIT REMOVAL
Should the hydraulic unit be discarded, drill a hole in the
accumulator at the illustrated position beforehand in order
to release the inside gas.
Caution
(1) The hydraulic unit has its accumulator filled with a
high pressure gas. Never throw it into a fire. Also,
never attempt to disassemble, press, weld or melt
it.
(2) When drilling a hole in the accumulator, be sure to
wear safety goggles since drill chips may blow out
together with the gas.
INSTALLATION SERVICE POINTS
"
A
A
GROMMET INSTALLATION
On the vehicle mounted with a sunroof, mount the drain pipe
to the grommet as illustrated.
"
B
A
SUCTION HOSE / RETURN HOSE INSTALLATION
Fit the suction hose and return hose to the nipple of hydraulic
unit as illustrated.
"
C
A
HYDRAULIC UNIT AND BRACKET ASSEMBLY
INSTALLATION
Hook the hydraulic unit bracket hook to the rear floor side
member and install the hydraulic unit and bracket assembly
mounting bolt.
Grommet
Drain pipe
25
±
5 mm
Nipple
Suction hose and
return hose
15 mm
Hook
Rear floor side member
REAR AXLE
– Sensor Relay <Vehicles with AYC>
27-41
SENSOR RELAY <VEHICLES WITH AYC>
REMOVAL AND INSTALLATION
Caution: SRS
For vehicles with SRS, before removal of air bag module and clock spring, refer to GROUP 52B
– Service Precautions and Air Bag Module and Clock Spring.
1
2
3
4
Steer sensor removal steps
D
Steering wheel and column cover
A
A
"
1. Steer sensor
Acceleration sensor and AYC relay
removal
2. Longitudinal acceleration sensor
3. Lateral acceleration sensor
4. AYC relay
NOTE
For the wheel speed sensor, refer to GROUP 35B.
REMOVAL SERVICE POINT
A
A
"
STEER SENSOR REMOVAL
Remove the steer sensor from the column switch.
Caution
(1) A photocoupler is used as the steer sensor. Use care
not to allow dust or grease to be on the sensor.
(2) Do not bend or dirty with grease the slit plate on
the column switch side.
Slit plate
Steer sensor
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст