Mitsubishi Outlander XL. Manual — part 1003

ZC6008750015

Connector: C-03

ZC6041270000

Connector: A-28X

ZC6008750023

Connector: C-34

C-34 (BR)

OPERATION
When a vehicle is at a standstill or being driven at a constant
speed for 12 seconds or more (except on rough road), the
headlight automatic leveling ECU inputs a headlight relay (LOW)
signal, vehicle speed signal, and height signal for judgment and
operates the headlight leveling.

NOTE:

The automatic leveling during driving at a constant

speed operates only once after starting driving. The
automatic leveling does not work if the vehicle pitch angle
during driving at a constant speed and the vehicle pitch
angle when the vehicle is stopped are the same.

LIGHTING

54Ac-85

DIAGNOSIS

TECHNICAL DESCRIPTION (COMMENT)
Assuming that the automatic leveling DTC is not set, if neither
right nor left automatic leveling operates, the headlight automatic
leveling-ECU, wiring harness and connector(s) between the
headlight automatic leveling-ECU and the headlight relay
(LOW), the combination meter (vehicle speed signal
abnormality), or wiring harness and connector(s) between the
headlight automatic leveling-ECU and the combination meter
may have a problem.

TROUBLESHOOTING HINTS

｠

Malfunction of the headlight automatic leveling-ECU

｠

Malfunction of combination meter

｠

The wiring harness or connectors may have loose, corroded,
or damaged terminals, or terminals pushed back in the
connector

DIAGNOSIS

Required Special Tools:

｠

MB992006: Extra fine probe

｠

MB991223: Harness set

｠

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, read the diagnostic
trouble code.

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
too (M.U.T.-III) P.54Ac-58."

(2)

Turn the ignition switch to the "ON" position.

(3)

Check whether the ETACS-ECU related DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is ETACS-ECU code set?

YES:

Go to Step 2.

NO:

Refer to Inspection Procedure 1 "Diagnostic trouble

code is not set" P.54Ac-79.

54Ac-86

LIGHTING

DIAGNOSIS

STEP 2. Check combination meter.

Q:Does the speedometer operate?

YES:

Go to Step 3.

NO:

Diagnosis the combination meter (Refer to GROUP 54Ab

- Diagnosis P.54Ab-7). On completion, go to Step 3.

STEP 3. 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 4.

NO:

Repair the damaged parts.

STEP 4. Voltage measurement at headlight automatic
leveling-ECU connector C-110.

(1)

Disconnect the connector, and measure at the wiring
harness-side connector.

(2)

Turn "ON" the headlight switch.

ZC5015300002

Connector C-110
(Harness side)

(3)

Voltage between headlight automatic leveling-ECU
connector C-110 (terminal No. 6) and body ground

The voltage should measure approximately 12 volts
(battery positive voltage).

Q:Does the voltage measure battery voltage?

YES:

Go to Step 6.

NO:

Go to Step 5.

STEP 5. Check wiring harness between headlight automatic
leveling-ECU connector C-110 (terminal No. 6) and
headlight relay (LOW) connector A-28X (terminal No. 3).

Q:Are the wiring harness between headlight automatic

leveling-ECU connector C-110 (terminal No. 6) and

headlight relay (LOW) connector A-28X (terminal No. 3) in

good condition?

YES:

Go to Step 6.

NO:

Repair the wiring harness.

STEP 6. Check combination meter connector C-03 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is combination meter connector C-03 in good condition?

YES:

Go to Step 7.

NO:

Repair the damaged parts.

STEP 7. Check wiring harness between headlight automatic
leveling-ECU connector C-110 (terminal No. 9) and
combination meter connector C-03 (terminal No. 20).

NOTE:

Prior to the wiring harness inspection, check

intermediate connector C-34, and repair if necessary.

LIGHTING

54Ac-87

DIAGNOSIS

Q:Are the wiring harness between headlight automatic

leveling-ECU connector C-110 (terminal No. 9) and

combination meter connector C-03 (terminal No. 20) in

good condition?

YES:

Go to Step 8.

NO:

Repair the wiring harness.

STEP 8. Retest the system.
Check that the automatic leveling operates 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 P.00-15).

NO:

Replace the headlight automatic leveling-ECU.

Inspection Procedure 3: Either automatic leveling does not operate.

M15410900109USA0000010000

Before replacing the ECU, ensure that the power supply
circuit, the ground circuit and the communication circuit are
normal.

54Ac-88

LIGHTING

DIAGNOSIS