Mitsubishi L200. Manual - part 521

CPU

IC

IC

AC806165

Power Window Sub Switch Circuit

ETACS-ECU

RELAY
BOX

POWER WINDOW
RELAY

FUSIBLE 
LINK

23

POWER WINDOW
SUB SWITCH
(FRONT: LH)

POWER WINDOW
MOTOR
(FRONT: LH)

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

AB

AC900873AC

HALL IC

C-134

HALL IC

E-16

E-18

C-134

DOOR

BODY

42-144

AC903704

Power Window Sub Switch Circuit <Double Cab>

RELAY
BOX

POWER WINDOW
RELAY

FUSIBLE
LINK

23

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

POWER
WINDOW
SUB 
SWITCH
(REAR: LH)

POWER
WINDOW
MOTOR
(REAR: LH)

POWER
WINDOW
MOTOR
(REAR: RH)

CPU

HALL IC

HALL IC

CPU

POWER
WINDOW
SUB 
SWITCH
(REAR: RH)

ETACS-ECU

AB

18  C-16

HALL IC

HALL IC

DOOR

BODY

42-145

COMMENTS ON TROUBLE SYMPTOM
If the front passenger's or rear power window <Dou-
ble cab> does not work by means of the respective 
power window sub switch, the power window sub 
switch or the power window motor may be defective.

PROBABLE CAUSES

• Malfunction of the power window sub switch 

(front: LH), power window sub switch (rear: RH) 
or power window sub switch (rear: LH)

DOOR

BODY

42-146

• Malfunction of the power window motor (front: 

LH), power window motor (rear: RH) or power 
window motor (rear: LH)

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the power window main switch.
Check that the power window lock switch is turned 
off.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Turn off the power window lock switch.

STEP 2. 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.42-64

.

NO : 

Go to Step 3.

STEP 3. Determine a trouble spot.

Q: Which power window does not work?

Front passenger's door  : 

Go to Step 4.

Rear right door <Double cab>  : 

Go to Step 12.

Rear left door <Double cab>  : 

Go to Step 20.

STEP 4. Connector check: E-16 power window 
sub switch (front: LH) connector

AC509952

Connector: E-16 <RHD>

BB

Harness side

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the connector.

STEP 5. Check the power window sub switch 
(front: LH) 
Check that the power window sub switch (front: LH) 
works normally. Refer to 

P.42-186

.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Replace the power window sub switch 
(front: LH).

STEP 6. Voltage measurement at the E-16 power 
window sub switch (front: LH) connector.

AC509952

Connector: E-16 <RHD>

BB

Harness side

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Turn the ignition switch to the ON position.

AC310507IZ

Connector E-16
(harness side)

(3) Check the voltage between the E-16 power 

window sub switch (front: LH) connector terminal 
No.4 and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Go to Step 7.

STEP 7. Connector check: A-24X power window 
relay connector

AC600252

AG

Connector: A-24X

Relay box side

Q: Is the check result normal?

DOOR

BODY

42-147

YES : 

Go to Step 8.

NO : 

Repair the connector.

STEP 8. Check the wiring harness between E-16 
power window sub switch (front: LH) connector 
terminal No.4 and A-24X power window relay 
connector terminal No.3.

AC600252

AG

Connector: A-24X

Relay box side

AC509952

Connector: E-16 <RHD>

BB

Harness side

NOTE: 

AC903865

Connectors: C-32, C-33 <RHD>

AE

C-33

C-32 (GR)

C-32

C-33

AC903363

AU

Connector: C-134 <RHD>

Prior to the wiring harness inspection, check interme-
diate connectors C-33, C-134 and joint connector C-
32, and repair if necessary.

• Check the power supply line for open circuit.

Q: Is the check result normal?