Mitsubishi Outlander XL. Manual - part 1002

ZC6008760030

Connector: C-110

ZC6008750000

Connector: C-125

C-125 (B)

ZC6008750032

Connector: C-33, C-34

C-33

C-34 (BR)

ZC6008780028

Connector: C-317, C-309

C-317

C-309 (B)

TECHNICAL DESCRIPTION (COMMENT)
If  neither  normal  nor  abnormal  DTC  is  set,  the  headlight
automatic leveling-ECU, the headlight automatic leveling-ECU
power supply, wiring harness or connectors of ground, or wiring
harness  and  connectors  between  the  headlight  automatic
leveling-ECU and date link connector may have a problem.

LIGHTING

54Ac-81

DIAGNOSIS

TROUBLESHOOTING HINTS

｠

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:

｠

MB992006: Extra fine probe

｠

MB991223: Harness set

STEP 1. 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 2.

NO:

 Repair the damaged parts.

STEP 2. Resistance measurement at headlight automatic
leveling-ECU connector C-110.

(1)

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

ZC5015310007

Connector C-110 
(Harness side)

(2)

Measure  the  resistance  between  headlight  automatic
leveling-ECU connector C-110 (terminal No. 14) and body
ground.

The measured value should be continuity exists (2
Ω or less).

Q:Does the measured resistance value correspond with this

range?

YES:

 Go to Step 4.

NO:

 Go to Step 3.

STEP 3. Check the wiring harness between headlight
automatic leveling-ECU connector C-110 (terminal No. 14)
and body ground.

Q:Is  the  wiring  harness  between  headlight  automatic

leveling-ECU connector C-110 (terminal No. 14) and body

ground. in good condition?

YES:

 

Go to Step 4.

NO:

 Repair the wiring harness.

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

(1)

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

(2)

Turn the ignition switch to the "ON" position.

54Ac-82

LIGHTING

DIAGNOSIS

ZC5015300001

Connector C-110 
(Harness side)

(3)

Voltage  between  headlight  automatic  leveling-ECU
connector (terminal No. 1) 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 the wiring harness between headlight
automatic leveling-ECU connector C-110 (terminal No. 1)
and fusible link (34).

NOTE: 

Before the wiring harness check, check the ETACS-ECU

connectors C-309 and C-317, and the intermittent connector
C-33. Then, repair them if necessary.

Q:Is  the  wiring  harness  between  headlight  automatic

leveling-ECU  connector  C-110  (terminal  No.  1)  and  the

fusible link (34) in good condition?

YES:

 Go to Step 6.

NO:

 Repair the wiring harness.

STEP 6. Check data link connector C-125 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is data link connector C-125 in good condition?

YES:

 Go to Step 7.

NO:

 Repair the damaged parts.

STEP 7. Check the wiring harness between headlight
automatic leveling-ECU connector C-110 (terminal No. 5/7)
and data link connector C-125 (terminal No. 1/10).

NOTE: 

Before the wiring harness check, check the

intermittent connector C-33 and C-34. Then, repair them if
necessary.

Q:Is  the  wiring  harness  between  headlight  automatic

leveling-ECU connector C-110 (terminal No. 5/7) and data

link  connector  C-125  (terminal  No.  1/10)  in  good

condition?

YES:

 Go to Step 8.

NO:

 Repair the wiring harness.

STEP 8. Retest the system.
Check if DTC is set.

Q:Is the DTC set?

YES:

 Refer to diagnostic trouble code chart P.54Ac-59.

NO:

 Replace the headlight automatic leveling-ECU.

LIGHTING

54Ac-83

DIAGNOSIS

Inspection Procedure 2: Neither right nor left automatic leveling operates.

M15410900108USA0000010002

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

Headlight Relay (LOW) Signal and Combination Meter Signal Circuit

HEADLIGHT AUTOMATIC 
LEVELING-ECU

HEADLIGHT 
RELAY (LOW)

RELAY BOX
(ENGINE COMPARTMENT)

FIELD EFFECT 
TRANSISTOR

COMBINATION METER

ZC6008760030

Connector: C-110

54Ac-84

LIGHTING

DIAGNOSIS