Mitsubishi Galant. Manual — part 699

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-191

STEP 2. Check the hazard warning light switch ground
circuit at the hazard warning light switch connector C-07.
(1)Disconnect the hazard warning light switch connector C-07

and measure at the harness side.

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

Q: Is the resistance less than 2 ohm?

YES : Go to Step 5.
NO : Go to Step 3.

STEP 3. Check hazard warning light switch connector C-07
for damage.
Q: Is hazard warning light switch connector C-07 in good

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

Connector Inspection

P.00E-2

. The hazard warning

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

STEP 4. Check the harness wire between hazard warning
light switch connector C-07 and ground.
Q: Is the harness wire between hazard warning light switch

connector C-07 and ground in good condition?
YES : There is no action to be taken.
NO : Repair it. The hazard warning light switch input signal

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

4 3 2 1

AC002151AB

CONNECTOR C-07
(HARNESS SIDE)

AC003089 AJ

CONNECTOR: C-07

AC003089 AJ

CONNECTOR: C-07

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-192

STEP 5. Check the hazard warning light switch connector
C-07 and ETACS-ECU connector C-82 for damage.
Q: Are hazard warning light switch connector C-07 and

ETACS-ECU connector C-82 in good condition?
YES : Go to Step 6.
NO : Repair or replace them. Refer to GROUP 00E,

Harness Connector Inspection

P.00E-2

. The hazard

warning light switch input signal should be able to be
checked and the functions, which are described in the
"Technical Description (comment)," should work
normally.

STEP 6. Check the harness wire between hazard warning
light switch connector C-07 and ETACS-ECU connector C-
82.
Q: Is the harness wire between hazard warning light switch

connector C-07 and ETACS-ECU connector C-82 in
good condition?
YES : Replace the ETACS-ECU. The hazard warning light

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

NO : Repair it. The hazard warning light switch input signal

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

AC003089 AJ

CONNECTOR: C-07

AC003082AC

JUNCTION BLOCK
(FRONT VIEW)

CONNECTOR: C-82

AC003089 AJ

CONNECTOR: C-07

AC003082AC

JUNCTION BLOCK
(FRONT VIEW)

CONNECTOR: C-82

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-193

Inspection Procedure N-5: The fog light switch signal is not sent to the ETACS-ECU.

CIRCUIT OPERATION
The ETACS-ECU operates the fog lights according
to the input signal from the fog light switch.

TECHNICAL DESCRIPTION (COMMENT)
The fog lights will not work normally if the fog light
switch input signal is an error.

TROUBLESHOOTING HINTS

•

Malfunction of the fog light switch

•

Malfunction of the ETACS-ECU

•

Damaged harness wires or connectors

DIAGNOSIS

Required Special Tools:

•

MB991223: Test Harness Set

AC004237

Fog Light Switch Input Circuit

AC003089 AK

CONNECTORS: C-25, C-56

C-25

C-56

AC003082AC

JUNCTION BLOCK
(FRONT VIEW)

CONNECTOR: C-82

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-194

STEP 1. Check the fog light switch.

Q: Is the fog light switch in good condition?

YES : Go to Step 2.
NO : Repair it. The fog light switch input signal should be

able to be checked and the fog lights should work
normally.

STEP 2. Check the fog light switch ground circuit at the
fog light switch connector C-25.
(1)Disconnect the fog light switch connector C-25 and

measure at the harness side.

(2)Measure the resistance between terminal 7 and ground.

Q: Is the resistance less than 2 ohm?

YES : Go to Step 5.
NO : Go to Step 3.

STEP 3. Check fog light switch connector C-25 for
damage.
Q: Is fog light switch connector C-25 in good condition?

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

Connector Inspection

P.00E-2

. The fog light switch

input signal should be able to be checked and the fog
light should work normally.

SWITCH
POSITION

TESTER
CONNECTION

SPECIFIED
CONDITION

Released

−

No continuity

Pressed

6

−

7

Continuity

AC003404

AC003396

CONNECTOR C-25
(HARNESS SIDE)

AB

AC003089 AL

CONNECTOR: C-25