Mitsubishi L200. Manual - part 497

REAR PANEL POWER WINDOW <Vehicles with rear panel power window>

BODY

42-48

Inspection Procedure 3: Rear Panel Power Window Anti-trap Function does not Work Normally.

CAUTION

Whenever the ECU is replaced, ensure that the 
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the rear panel power window anti-trap function 
does not work, the rear panel power window motor 
and the rear panel power window-ECU may be 
defective.

PROBABLE CAUSES

• Malfunction of the rear panel power window 

motor

• Malfunction of the rear panel power window-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code.
When the ignition switch is turned to the "ON" posi-
tion, check that the ETACS-ECU does not set the 
diagnosis code.

Q: Is the diagnosis code set?

YES : 

Refer to 

P.42-29

.

NO : 

Go to Step 2.

STEP 2. Confirm the rear panel power window 
learning function.
Check that the rear panel power window-ECU has 
learned the fully closed position of the window (Refer 
to 

P.42-54

).

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to 

P.42-55

.

STEP 3. Retest the system.
(1) Replace the rear panel power window motor.
(2) Check that the rear panel power window anti-trap 

function works normally.

Q: Is the check result normal?

YES : 

The procedure is complete.

NO : 

Replace the rear panel power window-ECU.

REAR PANEL POWER WINDOW <Vehicles with rear panel power window>

BODY

42-49

Inspection Procedure 4: Rear Panel Power Window-ECU cannot Communicate with ETACS-ECU.

CAUTION

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

AC701162

Communication Circuit

REAR PANEL POWER WINDOW-ECU

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Grey     R : Red     P : Pink     V : Violet     PU : Purple

ETACS-
ECU

LIN INTERFACE

FUSIBLE 
LINK

23

RELAY
BOX

AG

7

5

COMMENTS ON TROUBLE SYMPTOM
The power supply circuit of rear panel power win-
dow-ECU may have a trouble. Also, check the bat-
tery power supply circuit harness of rear panel power 
window-ECU, and repair if necessary.

PROBABLE CAUSES

• Malfunction of the rear panel power window-ECU

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code.
When the ignition switch is turned to the "ON" posi-
tion, check that the ETACS-ECU does not set the 
diagnosis code.

Q: Is the diagnosis code set?

YES : 

Refer to 

P.42-29

.

NO : 

Go to Step 2.

STEP 2. Connector check: C-219 ETACS-ECU 
connector and D-11 rear panel power window-
ECU connector

AC509934

Connector: C-219 <LHD>

AD

C-219 (GR)

Harness side

Junction block

AC509943

Connector: C-219 <RHD>

AB

C-219 (GR)

Harness side

Junction block
 (Rear view)

AC509967AI

Connector: D-11 <LHD>

Harness side

AC509969AI

Connector: D-11 <RHD>

Harness side

REAR PANEL POWER WINDOW <Vehicles with rear panel power window>

BODY

42-50

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the connector.

REAR PANEL POWER WINDOW <Vehicles with rear panel power window>

BODY

42-51

STEP 3. Check the wiring harness between C-219 
ETACS-ECU connector terminal No.54 and D-11 
rear panel power window-ECU connector 
terminal No.14.

AC509934

Connector: C-219 <LHD>

AD

C-219 (GR)

Harness side

Junction block

AC509943

Connector: C-219 <RHD>

AB

C-219 (GR)

Harness side

Junction block
 (Rear view)

AC509967AI

Connector: D-11 <LHD>

Harness side

AC509969AI

Connector: D-11 <RHD>

Harness side

NOTE: 

AC805687

Connector: C-16 <LHD>

AJ

AC903362

CB

Connector: C-16 <RHD>

Prior to the wiring harness inspection, check interme-
diate connector C-16, and repair if necessary.

• Check the communication line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the wiring harness.