Mitsubishi Outlander GS45X. Manual — part 51
HEADLIGHT
TSB Revision
CHASSIS ELECTRICAL
54A-201
STEP 2. Using scan tool MB991958, read the ETACS-ECU
diagnostic trouble code
(1) Turn the ignition switch to the "ON" position.
(2) Check whether the ETACS-ECU 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 3.
STEP 3. Check the keyless entry system operation
Check that the keyless entry system operation normally.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Troubleshoot the keyless entry system. Refer to
GROUP 42B, Troubleshooting
GROUP 42C, Troubleshooting
STEP 4. Check the tail lights and headlights.
When the lighting switch is operated, check that the tail lights
and headlights illuminate/go off normally.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Troubleshoot the tail lights and headlights. Refer to
trouble symptom chart
STEP 5. Retest the system.
Check that the welcome light function works normally.
Q: Is the check result normal?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00
− How to use
Troubleshooting/inspection Service Points
− How to
Cope with Intermittent Malfunction
NO : Replace the ETACS-ECU.
Inspection Procedure 14: The coming home light function does not work normally.
CAUTION
Whenever the ECU is replaced, ensure that the
power supply circuit, the ground circuit and the
communication circuit are normal.
.
TECHNICAL DESCRIPTION (COMMENT)
When the coming home light function does not oper-
ate normally, the keyless entry system or the
ETACS-ECU may have a problem. Or, the coming
home light function may have been set to disabled
using the customization function.
.
TROUBLESHOOTING HINTS
• Malfunction of the keyless entry system
• Malfunction of the ETACS-ECU
HEADLIGHT
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CHASSIS ELECTRICAL
54A-202
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
STEP 1. Using scan tool MB991958, Check the
configuration function.
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) Check that any one of the followings other than "Disabled"
is set for "Coming home light" with a customization function.
• 15 sec
• 30 sec
• 60 sec
• 180 sec
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is it set to other than "Disabled"?
YES : Go to Step 2.
NO : Set "Coming home light" to any one other than
"Disabled" with a customization function (Refer to
).
STEP 2. Using scan tool MB991958, read the ETACS-ECU
diagnostic trouble code
(1) Turn the ignition switch to the "ON" position.
(2) Check whether the ETACS-ECU 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 3.
ZC501967
AC404789
AC702802
MB991824
MB991827
MB991910
Data link
connector
AB
HEADLIGHT
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CHASSIS ELECTRICAL
54A-203
STEP 3. Using scan tool MB991958, check data list
Use the ETACS-ECU data list to check the signals related to
the front dome light.
• Turn the ignition switch to the LOCK (OFF) position.
OK: Normal condition is displayed.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Troubleshoot the ETACS-ECU. Refer to Inspection
Procedure 2 "The ignition switch (IG1) signal is not
received"
.
STEP 4. Check the headlights.
When the lighting switch is operated, check that the headlights
illuminate/go off normally.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Troubleshoot the headlights. Refer to trouble
symptom chart
STEP 5. Retest the system.
Check that the coming home light function works normally.
Q: Is the check result normal?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00
− How to use
Troubleshooting/inspection Service Points
− How to
Cope with Intermittent Malfunction
NO : Replace the ETACS-ECU.
Item No.
Item name
Normal
condition
Item 254
IG voltage
1 V or less
HEADLIGHT
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CHASSIS ELECTRICAL
54A-204
DATA LIST REFERENCE TABLE
M1540103800229
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 bright
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
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