Mitsubishi Galant. Manual — part 667

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-63

STEP 2. Check the power window relay power supply
circuit at the power window relay connector A-04X.
(1)Disconnect the power window relay connector A-04X and

measure at the relay box side.

(2)Measure the voltages between terminal 1, 5 and ground.

Q: Are the voltages approximately 12 volts (battery

positive voltage)?
YES : Go to Step 5.
NO : Go to Step 3.

STEP 3. Check the power window connector A-04X for
damage.
Q: Is power window connector A-04X in good condition?

YES : Go to Step 4.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. The power windows

should work normally.

STEP 4. Check the harness wire between power window
relay connector A-04X and fusible link (3).
Q: Is the harness wire between power window relay

connector A-04X and fusible link (3) in good condition?
YES : There is no action to be taken.
NO : Repair it. The power windows should work normally.

1

2

3

4

5

AC002066

CONNECTOR A-04X
(RELAY BOX SIDE)

AB

AC003128 AC

CONNECTOR: A-04X

A-04X

POWER
WINDOW
RELAY

BATTERY

AC002299AD

FUSIBLE LINK (3)

AC003128 AC

CONNECTOR: A-04X

A-04X

POWER
WINDOW
RELAY

BATTERY

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-64

STEP 5. Check the power window main switch ground
circuit at the power window main switch connector E-16.
(1)Disconnect the power window main switch connector E-16

and measure at the harness side.

(2)Measure the resistance between terminal 12 and ground.

Q: Is the resistance less than 2 ohm?

YES : Go to Step 8.
NO : Go to Step 6.

STEP 6. Check power window main switch connector E-16
for damage.
Q: Is power window main switch connector E-16 in good

condition?
YES : Go to Step 7.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. The power windows

should work normally.

STEP 7. Check the harness wires between power window
main switch connector E-16 and ground.
NOTE: After checking intermediate connector C-68, check the
wires. If intermediate connector C-68 is damaged, repair or
replace it. Refer to GROUP 00E, Harness Connector
Inspection

P.00E-2

.

Q: Are the harness wires between power window main

switch connector E-16 and ground in good condition?
YES : There is no action to be taken.
NO : Repair them. The power windows should work

normally.

AC003398 AC

CONNECTOR E-16
(JUNCTION BLOCK SIDE)

AC003086AB

DOOR

CONNECTOR: E-16

AC003086AB

DOOR

CONNECTOR: E-16

AC003079AG

CONNECTOR
BLOCK (LH)

CONNECTOR: C-68

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-65

STEP 8. Check the power window relay connector A-04X
and front-ECU connector A-09X for damage.
Q: Are power window relay connector A-04X and front-ECU

connector A-09X in good condition?
YES : Go to Step 9.
NO : Repair or replace them. Refer to GROUP 00E,

Harness Connector Inspection

P.00E-2

. The power

windows should work normally.

STEP 9. Check the harness wire between power window
relay connector A-04X and front-ECU connector A-09X.
Q: Is the harness wire between power window relay

connector A-04X and front-ECU connector A-09X in
good condition?
YES : Go to Step 10.
NO : Repair it. The power windows should work normally.

STEP 10. Check the power window relay connector A-04X
and power window main switch connector E-16 for
damage.
Q: Are power window relay connector A-04X and power

window main switch connector E-16 in good condition?
YES : Go to Step 11.
NO : Repair or replace them. Refer to GROUP 00E,

Harness Connector Inspection

P.00E-2

. The power

windows should work normally.

AC003128 AB

A-09X

CONNECTORS: A-04X, A-09X

FRONT - ECU

A-04X

POWER
WINDOW
RELAY

BATTERY

AC003128 AB

A-09X

CONNECTORS: A-04X, A-09X

FRONT - ECU

A-04X

POWER
WINDOW
RELAY

BATTERY

AC003128 AC

CONNECTOR: A-04X

A-04X

POWER
WINDOW
RELAY

BATTERY

AC003086AB

DOOR

CONNECTOR: E-16

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-66

STEP 11. Check the harness wires between power window
relay connector A-04X and power window main switch
connector E-16.
NOTE: After checking intermediate connectors C-66 and C-68,
check the wires. If intermediate connectors C-66 and C-68 are
damaged, repair or replace them. Refer to GROUP 00E,
Harness Connector Inspection

P.00E-2

.

Q: Are the harness wires between power window relay

connector A-04X and power window main switch
connector E-16 in good condition?
YES : Replace the ETACS-ECU. The power windows

should work normally.

NO : Repair them. The power windows should work

normally.

Inspection Procedure D-2: Power window relay: Power window timer function does not work
normally.

TECHNICAL DESCRIPTION (COMMENT)
The ETACS-ECU operates the power window timer
function, based on input signals from the following
switches:

•

Ignition switch (IG1)

•

Driver's or passenger's door switch

If the power window timer function do not work
normally, the input signal circuit, the ETACS-ECU or
front-ECU may be defective.

TROUBLESHOOTING HINTS

•

Malfunction of the driver's or front passenger's
door switch

•

Malfunction of the ETACS-ECU

•

Malfunction of the front-ECU

•

Damaged harness wires or connectors

AC003128 AC

CONNECTOR: A-04X

A-04X

POWER
WINDOW
RELAY

BATTERY

AC003086AB

DOOR

CONNECTOR: E-16

AC003079AI

CONNECTOR
BLOCK (LH)

CONNECTORS: C-66, C-68

C-66

C-68