Mitsubishi Evolution X. Manual — part 953
HEADLIGHT
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CHASSIS ELECTRICAL
54A-173
STEP 2. Using scan tool MB991958, diagnose the CAN bus
line.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect
scan tool (M.U.T.-III)
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?
YES : Go to Step 3.
NO : Repair the CAN bus line (Refer to GROUP 54C,
).
STEP 3. Using scan tool MB991958, read the diagnostic
trouble code.
Check if diagnostic trouble code is set to the ETACS-ECU.
(1) Turn the ignition switch to the "ON" position.
(2) Check whether the ETACS-ECU related DTC is set.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Diagnose the ETACS-ECU. Refer to ETACS,
.
NO : Go to Step 4.
STEP 4. Using scan tool MB991958, check actuator test.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to the actuator test mode.
• Item 7: Indicator1
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result normal?
YES : Replace the ETACS-ECU.
NO : Replace the combination meter.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
HEADLIGHT
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CHASSIS ELECTRICAL
54A-174
DATA LIST REFERENCE TABLE
M1540103800133
LIN <LIGHTING CONTROL SENSOR (LIGHT SENSOR)>
Item No. Scan tool display
Check conditions
Normal conditions
7001
RLS IG1
When the ignition switch is in the "LOCK"
or "ACC" position
OFF
When the ignition switch is in the "ON" or
"START" position
ON
7002
RLS Light sensor sensitivity When the customize value of lighting
control sensor sensitivity is set to Level 1
(fast)
Level 1 (+) bright
When the customize value of lighting
control sensor sensitivity is set to Level 2
(slightly fast)
Level 2
When the customize value of lighting
control sensor sensitivity is set to Level 3
(normal)
Level 3
When the customize value of lighting
control sensor sensitivity is set to Level 4
(slightly slow)
Level 4 (
−) dark
When the customize value of lighting
control sensor sensitivity is set to Level 5
(slow)
Level 5 (
−) dark
7004
RLS Radio ACC
When the ignition switch is in the "LOCK"
or "START" position
OFF
When the ignition switch is in the "ACC" or
"ON" position
ON
7007
RLS Vehicle speed
Perform a test run of the vehicle.
The values displayed
on the speedometer
and the scan tool
MB991958 are almost
the same.
7009
RLS Low beam "ON"
request
When the lighting control sensor area is
bright
OFF
When the lighting control sensor area is
dark
ON
7010
RLS judgment illuminance
output
When the lighting control sensor area
changes from dark to bright
The value displayed on
the scan tool
MB991958 increases.
When the lighting control sensor area
changes from bright to dark
The value displayed on
the scan tool
MB991958 decreases.
7011
RLS Taillight "ON" request
When the lighting control sensor area is
bright
OFF
When the lighting control sensor area is
dark
ON
HEADLIGHT
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CHASSIS ELECTRICAL
54A-175
ON-VEHICLE SERVICE
HEADLIGHT AIMING
M1540100500304
PRE-AIMING INSTRUCTIONS (LOW-BEAM)
.
1. Inspect for rusted or faulty headlight assemblies.
2. These conditions must be corrected before a satisfactory
adjustment can be made.
3. Inspect tire inflation, and adjust if necessary.
4. If the fuel tank is not full, place a weight in the trunk of the
vehicle to simulate weight of a full tank [3 kg (6.6 pounds)
per gallon].
5. There should be no other load in the vehicle other than
driver or substituted weight of approximately 68 kg (150
pounds) placed in driver's position.
6. Turn the headlight leveling switch to the switch position "0."
<Vehicles with headlight manual leveling system>
7. Thoroughly clean headlight lenses.
8. Place the vehicle on a level floor, perpendicular to a flat
screen 7.62 m (25.0 ft) away from the bulb center-marks on
the headlight lens.
9. Rock vehicle sideways to allow vehicle to assume its normal
position.
10.Bounce the front suspension through three (3) oscillations
by applying the body weight to hood or bumper.
7012
RLS Tunnel detect output
When the lighting control sensor area is
bright
OFF
When the lighting control sensor area is
dark
ON
7014
RLS specification
−
EU
7015
RLS ECU Diagnostic
Version
−
−
7016
RLS ECU Hardware
Version
−
−
7017
RLS ECU Software Version −
−
7018
RLS ECU Part number
−
8634A001
7019
RLS ECU Serial number
−
−
Item No. Scan tool display
Check conditions
Normal conditions
HEADLIGHT
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CHASSIS ELECTRICAL
54A-176
11.Set the distance between the screen and the bulb center
marks of the headlight as shown in the illustration.
12.Four lines of adhesive tape (or equivalent markings) are
required on screen or wall:
(1) Position a vertical tape or mark so that it is aligned with
the vehicle center line.
(2) Measure the distance from the center-marks on the
headlight lens to the floor [ reference value: 679.5 mm
(26.75 inches)]. Transfer the measurement to the screen.
Horizontal tape or mark on the screen is for reference of
vertical adjustment.
(3) Measure the distance from the center line of the vehicle
to the center of each headlight. Transfer the
measurement to the screen. Vertical tape or mark on the
screen with reference to the center line of each headlight
bulb.
HEADLIGHT ADJUSTMENT (LOW-BEAM)
1. The low-beam headlight will project on the screen upper
edge of the beam (cut-off).
AC709178AB
(1)
(2)
(3)
Headlight center
Vehicle center line
(3)
7.62 m (25.0 ft)
Screen
Headlight center
(Discharge bulb)
Headlight center
(Halogen bulb)
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