Mitsubishi Galant. Manual — part 710

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-235

STEP 25. Check the harness wires between rear door lock
actuator switch (RH) connector E-10 and ETACS-ECU
connector C-81.
NOTE: After checking intermediate connector C-71 and D-07,
check the wires. If intermediate connector C-71 and D-07 is
damaged, repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection

P.00E-2

.

Q: Are the harness wires between rear door lock actuator

switch (RH) connector E-10 and ETACS-ECU connector
C-81 in good condition?
YES : Replace the ETACS-ECU. The input signal from the

rear door lock actuator switch (RH) should be able to
be checked and the functions, which are described in
the "Technical Description (comment)," should work
normally.

NO : Repair them. The input signal from the rear door lock

actuator switch (RH) should be able to be checked
and the functions, which are described in the
"Technical Description (comment)," should work
normally.

AC003082 AJ

JUNCTION BLOCK
(FRONT VIEW)

CONNECTOR: C-81

AC003086AJ

DOOR

CONNECTOR: E-10

AC003415 AC

CONNECTOR: C-71

CONNECTOR
BLOCK (RH)

AC003084 AI

CONNECTOR: D-07

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-236

Inspection Procedure N-10: The door lock switch (incorporated in power window main switch and
power window sub switch) signal is not sent to the ETACS-ECU.

Door Lock Switch Input Circuit

AC004244

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-237

CIRCUIT OPERATION
The ETACS-ECU uses the input signal from the door
lock switch to operate the central door locking
system.

TECHNICAL DESCRIPTION (COMMENT)
The door lock switch input signal is used to operate
the central door locking system. If the signal fails, the
door will not be locked or unlocked when the door
lock switch is operated.

TROUBLESHOOTING HINTS

•

Malfunction of the power window main switch or
power window sub switch (door lock switch)

•

Malfunction of the ETACS-ECU

•

Damaged harness wires or connectors

DIAGNOSIS

Required Special Tools:

•

MB991223: Test Harness Set

•

MB991502: Scan Tool (MUT-II)

•

MB991529: Diagnostic Trouble Code Check Harness

STEP 1. Check the location of malfunction.

Q: Which door lock switch signal is not input?

Power window main switch (Driver's door) : Go to Step

2.

Power window sub switch (Front passenger's door) :

Go to Step 8.

AC003079AK

CONNECTOR
BLOCK (LH)

CONNECTOR: C-68

AC003415 AD

CONNECTOR: C-72

CONNECTOR
BLOCK (RH)

AC003082 AJ

JUNCTION BLOCK
(FRONT VIEW)

CONNECTOR: C-81

AC003086AL

DOOR

CONNECTORS: E-05, E-16

E-05

E-16

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-238

STEP 2. Check the door lock switch (power window main
switch).

Q: Is the door lock switch (power window main switch) in

good condition?
YES : Go to Step 3.
NO : Replace the power window main switch. The door

lock switch input signal should be able to be checked
and the central door locking system should work
normally.

STEP 3. Check the power window main switch ground
circuit at power window main switch connector E-16.
(1)Disconnect 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 6.
NO : Go to Step 4.

STEP 4. 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 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. The door lock switch

input signal should be able to be checked and the
central door locking system should work normally.

SWITCH
POSITION

TESTER
CONNECTION

SPECIFIED
CONDITION

LOCK

5

−

10

Continuity

OFF

−

No continuity

UNLOCK

10

−

12

Continuity

AC003179

AC003398 AB

CONNECTOR E-12
(HARNESS SIDE)

AC003086AM

DOOR

CONNECTOR: E-16