Mitsubishi Outlander XL. Manual - part 993

Q:Does scan tool MB991958 display the items "Head light

LO ON duty", "IG voltage" and "Dr door ajar switch" as

normal condition?

YES<Normal conditions are displayed for all items.>:

 Go

to Step 4.

NO<Normal condition is not displayed for item No.
206.>:

 Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 2 "ETACS-ECU does not
receive any signal from the column switch signal" P.
54Ad-89.

NO<Normal condition is not displayed for item No.
254.>:

 Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 2 "ETACS-ECU does not
receive any signal from the ignition switch (IG1)" P.
54Ad-62.

NO<Normal condition is not displayed for item No.
256.>:

 Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 5 "ETACS-ECU does not
receive any signal from the front door switch (LH)" P.
54Ad-73.

STEP 4. Retest the system
Check  that  the  headlight  automatic  shutdown  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 P.00-15).

NO:

 Replace the ETACS-ECU.

Inspection Procedure 8: Daytime running light function does not work normally.

M15410900196USA0000010000

Whenever  the  ECU  is  replaced,  ensure  that  the
input and output signal circuits are normal.

TECHNICAL DESCRIPTION (COMMENT)
If  the  daytime  running  light  function  does  not  work,
connector(s), wiring harness in the CAN bus lines, the
engine  control  module,  the  combination  meter,  the

ETACS-ECU  or  the  input  signal  circuit  may  be
defective.

TROUBLESHOOTING HINTS

｠

Trouble in input signal system

｠

Malfunction of the ETACS-ECU

｠

Damaged harness wires and connectors

DIAGNOSIS

Required Special Tools:

｠

MB991223: Harness Set

｠

MB992006: Extra Fine Probe

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: V.C.I.

LIGHTING

54Ac-45

DIAGNOSIS

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910: M.U.T.-III Main Harness A

STEP 1. Verify the headlight (low-beam) operation.
Check to see that the headlight (low-beam) lights up properly
when operating the dimmer switch while the headlight switch is
ON.

Q:Do the headlights (low-beam) illuminate normally?

YES:

 Go to Step 2.

NO:

 Refer to Inspection Procedure 1 "Headlights (low-

beam) do not illuminate normally P.54Ac-26."

STEP 2. Using scan tool MB991958, diagnose the CAN bus
line.

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 the
Scan Tool (M.U.T.-III) P.54Ac-11."

(2)

Turn the ignition switch to the "ON" position.

(3)

Diagnose the CAN bus line.

(4)

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

Q:Is the CAN bus line found to be normal?

YES:

 Go to Step 3.

NO:

 Repair the CAN bus line (Refer to GROUP 54D,

Diagnosis P.54D-17).

STEP 3. Using scan tool MB991958, read the ETACS-ECU
diagnostic trouble code.
Check whether ETACS-ECU DTCs are set.

(1)

Turn the ignition switch to the "ON" position.

(2)

Check for ETACS-ECU DTCs.

(3)

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

Q:Is the DTC set?

YES:

 Diagnose the ETACS-ECU. Refer to GROUP 54Ad -

Diagnosis P.54Ad-8.

NO:

 Go to Step 4.

STEP 4. Using scan tool MB991958, read the MFI system
diagnostic trouble code.
Check whether engine control module DTCs are set or not.

(1)

Turn the ignition switch to the "ON" position.

(2)

Check for engine control module DTCs.

(3)

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

Q:Is the DTC set?

54Ac-46

LIGHTING

DIAGNOSIS

YES:

 Diagnose the MFI system. Refer to GROUP 13Ab -

Diagnostic Trouble Code Chart P.13Ab-44.

NO:

 Go to Step 5.

STEP 5. Check the parking brake switch.
Check the input signals from the parking brake switch.

(1)

Turn the ignition switch to the "ON" position.

(2)

Check that the brake warning light on the combination meter
goes off when the parking brake lever is released.

(3)

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

Q:Does the brake warning light go off?

YES:

 Replace the ETACS-ECU. Verify that the daytime

running light function does not work normally.

NO:

 Refer to GROUP 36 - Inspection Procedure 3: When the

Parking Brake Lever is Released, the Brake Warning Light
does not Turn Off. P.36-7. Verify that the daytime running
light function does not work normally.

LIGHTING

54Ac-47

DIAGNOSIS

Inspection Procedure 9: Any of position light, side marker lights or the license plate
light does not illuminate.

M15410900163USA0000010000

Position Lights, Licence Plate Lights and Rear Side Marker Lights Circuit

REAR
COMBINATION
LIGHT
(LH)              (RH)

ETACS-
ECU

TAILLIGHT CONTROL CIRCUIT

LICENCE
PLATE
LIGHT
(LH)  (RH)

REAR SIDE
MARKER LIGHT
(LH)              (RH)

HEADLIGHT
ASSEMBLY
(LH)

HEADLIGHT
ASSEMBLY
(RH)

54Ac-48

LIGHTING

DIAGNOSIS