Mitsubishi Evolution X. Manual - part 495

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STEP 6. Check the front power window motor (RH).
(1) Remove the front power window regulator (RH). Refer to  

Door Glass and Regulator 

P.42A-124

.

(2) Connect a battery to the motor terminal, and check that the 

motor runs freely.

Q: Is the front power window motor (RH) normal?

YES : Go to Step 7.
NO :  Replace the front power window regulator (RH). 

When the front power window sub switch (RH) is 
operated, the front power window (RH) should raise 
and lower normally.

STEP 7. Check the battery power supply circuit to the front 
power window sub switch. Measure the voltage at front 
power window sub switch connector E-09.
(1) Disconnect front power window sub switch connector E-09 

and measure the voltage available at the wiring harness 
side of the connector.

(2) Measure the voltage between terminal 6 and ground.

• The voltage should measure approximately 12 volts 

(battery positive voltage).

Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 10.
NO :  Go to Step 8.

Battery connection

Slider position

• Connect terminal 1 to 

the negative battery 
terminal

• Connect terminal 4 to 

the positive battery 
terminal

UP

• Connect terminal 4 to 

the negative battery 
terminal

• Connect terminal 1 to 

the positive battery 
terminal

DOWN

AC609372AB

AC208730BL

Connector E-09 
(harness side)

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STEP 8. Check ETACS-ECU connector C-315 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is ETACS-ECU connector C-315 in good condition?

YES : Go to Step 9.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. When the front power window sub switch 

(RH) is operated, the front power window (RH) should 
raise and lower normally.

STEP 9. Check the wiring harness between ETACS-ECU 
connector C-315 (terminal No. 8) and front power window 
sub switch connector E-09 (terminal No. 6).
NOTE: Also check  intermediate connector C-116. If intermedi-
ate connector C-116 is damaged, repair or replace the dam-
aged component(s) as described in GROUP 00E, Harness 
Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between ETACS-ECU connector 

C-315 (terminal No. 8) and front power window sub 
switch connector E-09 (terminal No. 6) in good 
condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. When the 
front power window sub switch is operated, the front 
power window (RH) should raise and lower normally.

STEP 10. Check the ground circuit to the front power 
window sub switch. Measure the resistance at front power 
window sub switch connector E-09.
(1) Disconnect front power window sub switch connector E-09 

and measure the resistance available at the wiring harness 
side of the connector.

(2) Measure the resistance value between terminal 5 and 

ground, and also between terminal 8 and ground.

• The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 12.
NO :  Go to Step 11.

AC209731

AC208731BT

Connector E-09 
(harness side)

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STEP 11. Check the wiring harness between power window 
main switch connector E-15 (terminals Nos. 1 and 3) and 
front power window sub switch connector E-09 (terminals 
Nos. 8 and 5).
NOTE: Also check intermediate connectors C-116 and C-128. 
If intermediate connector C-116 or C-128 is damaged, repair or 
replace the damaged component(s) as described in GROUP 
00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between power window main 

switch connector E-15 (terminals Nos. 1 and 3) and front 
power window sub switch connector E-09 (terminals 
Nos. 8 and 5) in good condition?
YES : Replace the power window main switch. When the 

front power window sub switch (RH) is operated, the 
front power window (RH) should raise and lower 
normally.

NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. When the 
front power window sub switch (RH) is operated, the 
front power window (RH) should raise and lower 
normally.

STEP 12. Check the wiring harness between front power 
window sub switch connector E-09 (terminals Nos. 4 and 
7) and front power window motor (RH) connector E-10 
(terminals Nos. 1 and 4).
Q: Is the wiring harness between front power window sub 

switch connector E-09 (terminals Nos. 4 and 7) and front 
power window motor (RH) connector E-10 (terminals 
Nos. 1 and 4) in good condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. When the 
front power window sub switch (RH) is operated, the 
front power window (RH) should raise and lower 
normally.

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STEP 13. Check rear power window sub switch (LH) 
connector E-24 and rear power window motor (LH) 
connector E-25 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.
Q: Are rear power window sub switch (LH) connector E-24 

and rear power window motor (LH) connector E-25 in 
good condition?
YES : Go to Step 14.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. When the rear power window sub switch 

(LH) is operated, the rear power window (LH) should 
raise and lower normally.

STEP 14. Check the rear power window sub switch (LH) for 
continuity.
(1) Remove the rear power window sub switch (LH). Refer to 

Door Glass and Regulator 

P.42A-124

.

(2) Check continuity when the rear power window sub switch 

(LH) is operated to "UP" or "DOWN" position.

Q: Is the rear power window sub switch (LH) normal?

YES : Go to Step 15.
NO :  Replace the rear power window sub switch (LH). 

When the rear power window sub switch (LH) is 
operated, the rear power window (LH) should raise 
and lower normally.

Switch 
position

Tester 
connection

Specified 
condition

UP

4 

− 5, 6 − 7

Continuity 
exists (2 

Ω or 

less)

OFF

4 

− 5, 7 − 8

Continuity 
exists (2 

Ω or 

less)

DOWN

4 

− 6, 7 − 8

Continuity 
exists (2 

Ω or 

less)

AC310098

8

3

4 5

1

2

6 7

AB