Mitsubishi Galant. Manual — part 691

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-159

STEP 2. Check the dome light connector D-06 and ETACS-
ECU connectors C-86 for damage.
Q: Are dome light connector D-06 and ETACS-ECU

connectors C-86 in good condition?
YES : Go to Step 3.
NO : Repair or replace them. Refer to GROUP 00E,

Harness Connector Inspection

P.00E-2

. The dome

lights should illuminate normally.

STEP 3. Check the harness wire between dome light
connector D-06 and ETACS-ECU connectors C-86.
Q: Is the harness wire between dome light connector D-06

and ETACS-ECU connectors C-86 in good condition?
YES : Replace the ETACS-ECU. The dome lights should

illuminate normally.

NO : Repair it. The dome lights should illuminate normally.

AC003080 AD

JUNCTION BLOCK
(REAR VIEW)

CONNECTOR: C-86

AC003176 AB

CONNECTOR: D-06

AC003080 AD

JUNCTION BLOCK
(REAR VIEW)

CONNECTOR: C-86

AC003176 AB

CONNECTOR: D-06

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-160

Inspection Procedure L-2: Dome light: Dome light dimming function does not work normally.

TECHNICAL DESCRIPTION (COMMENT)
The ETACS-ECU dims the dome light according to
the input signals form the following switches :

TROUBLESHOOTING HINTS

•

Malfunction of the dome light

•

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 trouble symptom.

Q: Does the dome light illuminate when the dome light

switch is turned to "ON" position?
YES : Go to Step 6.
NO : Go to Step 2.

STEP 2. Check the dome light connector D-06 for damage.
Q: Are dome light connector D-06 in good condition?

YES : Go to Step 3.
NO : Repair or replace them. Refer to GROUP 00E,

Harness Connector Inspection

P.00E-2

. The dome

lights should illuminate normally.

AC003080 AD

JUNCTION BLOCK
(REAR VIEW)

CONNECTOR: C-86

AC003176 AB

CONNECTOR: D-06

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-161

STEP 3. Check the harness wire between dome light
connector D-06 and battery.
NOTE: After checking junction block connector C-76 and C-84
and intermediate connector C-66, check the wires. If junction
block connector C-76 and C-84 and intermediate connector C-
66 are damaged, repair or replace it. Refer to GROUP 00E,
Harness Connector Inspection

P.00E-2

.

Q: Is the harness wire between dome light connector D-06

and battery in good condition?
YES : Go to Step 4.
NO : Repair it. The interior dome should illuminate

normally.

AC003176 AB

CONNECTOR: D-06

AC003079 AB

CONNECTOR
BLOCK (LH)

CONNECTOR: C-66

AC003082 AU

CONNECTOR: C-76

JUNCTION BLOCK
(FRONT VIEW)

AC003080 AB

JUNCTION BLOCK
(REAR VIEW)

CONNECTOR: C-84

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-162

STEP 4. Check the dome light connector D-06 for damage.
Q: Are dome light connector D-06 in good condition?

YES : Go to Step 5.
NO : Repair or replace them. Refer to GROUP 00E,

Harness Connector Inspection

P.00E-2

. The dome

lights should illuminate normally.

STEP 5. Check the harness wire between dome light
connector D-06 and ground.
NOTE: After checking junction block connector C-73 and C-76 ,
check the wires. If junction block connector C-73 and C-76 are
damaged, repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection

P.00E-2

.

Q: Is the harness wire between dome light connector D-06

and ground in good condition?
YES : Replace the ETACS-ECU. The dome lights should

illuminate normally.

NO : Repair it. The interior dome should illuminate

normally.

AC003176 AB

CONNECTOR: D-06

AC003176 AB

CONNECTOR: D-06

AC003082 AN

CONNECTORS: C-73, C-76

C-73

JUNCTION BLOCK
(FRONT VIEW)

C-76