Mitsubishi Outlander XL. Manual — part 997
ZC6008800023
Connector: D-117, D-118
D-117
D-118
TROUBLE JUDGMENT
When the headlight automatic leveling-ECU receives
an abnormal voltage signal from the rear height
sensor, DTC 21 is set.
TECHNICAL DESCRIPTION (COMMENT)
The rear height sensor, the headlight automatic
leveling-ECU, or wiring harness and connectors
between the two may have a problem.
TROUBLESHOOTING HINTS
⦆
Malfunction of the rear height sensor
⦆
Malfunction of the headlight automatic leveling-
ECU
⦆
The wiring harness or connectors may have loose,
corroded, or damaged terminals, or terminals
pushed back in the connector
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. Check rear height sensor connector D-118 for
loose, corroded or damaged terminals, or terminals pushed
back in the connector.
Q:Is rear height sensor connector D-118 in good condition?
YES:
Go to Step 2.
NO:
Repair the damaged parts.
STEP 2. Check the rear height sensor.
Check that the rear height sensor is normal (Refer to P.
54Ac-180).
Q:Does the rear height sensor work normal?
YES:
Go to Step 3.
NO:
Replace the rear height sensor.
LIGHTING
54Ac-61
DIAGNOSIS
STEP 3. Using scan tool MB991958, Check whether the
diagnostic trouble code is reset.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958. Refer to "How to connect scan
tool P.54Ac-58."
(2)
Turn the ignition switch to the "ON" position.
(3)
Erase the DTC.
(4)
Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(5)
Check if DTC is set.
Q:Is DTC 21 set?
YES:
Go to Step 4.
NO:
The procedure is complete.
STEP 4. Check headlight automatic leveling-ECU connector
C-110 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q:Is headlight automatic leveling-ECU connector C-110 in
good condition?
YES:
Go to Step 5.
NO:
Repair the damaged parts.
STEP 5. Check the wiring harness between rear height
sensor connector D-118 (terminal No. 1/2/3) and the
headlight automatic leveling-ECU connector C-110
(terminal No 16/18/20).
NOTE:
Before the wiring harness check, check the
intermediate connectors C-129 and D-117, and then repair
that if necessary.
Q:Is wiring harness between rear height sensor connector
D-118 (terminal No. 1/2/3) and the headlight automatic
leveling-ECU connector C-110 (terminal No 16/18/20) in
good condition?
YES:
Go to Step 6.
NO:
Repair the wiring harness.
STEP 6. Using scan tool MB991958, Check whether the
diagnostic trouble code is reset.
(1)
Turn the ignition switch to the "ON" position.
(2)
Erase the DTC.
(3)
Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(4)
Check if DTC is set.
54Ac-62
LIGHTING
DIAGNOSIS
Q:Is DTC 21 set?
YES:
Replace the headlight automatic leveling-ECU.
NO:
The trouble, such as a poor connector connection from
the rear height sensor to headlight automatic leveling-
ECU or an open circuit of wiring harness, can be an
intermittent malfunction. (Refer to GROUP 00 - How to use
Troubleshooting/inspection Service Points - How to cope
with Intermittent Malfunction P.00-15.)
DTC 22: Height sensor abnormality (Front)
M15410900082USA0000010000
Before replacing the ECU, ensure that the
communication circuit is normal.
Height Sensor (Front) Circuit
HEADLAMP
AUTOMATIC
LEVELING-ECU
HALL IC
FRONT
HEIGHT
SENSOR
ZC6008760030
Connector: C-110
LIGHTING
54Ac-63
DIAGNOSIS
ZC6008710007
Connector: A-04, A-57
A-04 (B)
A-57 (GR)
TROUBLE JUDGMENT
When the headlight automatic leveling-ECU receives
an abnormal voltage signal from the front height
sensor, DTC 22 is set.
TECHNICAL DESCRIPTION (COMMENT)
The front height sensor, the headlight automatic
leveling-ECU, or wiring harness and connectors
between the two may have a problem.
TROUBLESHOOTING HINTS
⦆
Malfunction of the front height sensor
⦆
Malfunction of the headlight automatic leveling-
ECU
⦆
The wiring harness or connectors may have loose,
corroded, or damaged terminals, or terminals
pushed back in the connector
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. Check front height sensor connector A-04 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q:Is front height sensor connector A-04 in good condition?
YES:
Go to Step 2.
NO:
Repair the damaged parts.
STEP 2. Check the front height sensor.
Check that the front height sensor is normal (Refer to P.
54Ac-180).
Q:Does front height sensor work normal?
YES:
Go to Step 3.
NO:
Replace the front height sensor.
54Ac-64
LIGHTING
DIAGNOSIS
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