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