Mitsubishi Galant 9G. Manual — part 17

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-64

SCAN TOOL OR VOLTMETER

If a problem is found in the Pulse Check, observe the
table below.

SYMPTOM PROCEDURES

INSPECTION PROCEDURE A-1: Communication with the SWS Monitor Kit is not Possible.

SYMPTOM

INSPECTION
PROCEDURE

REFERENCE
PAGE

ETACS-ECU does not receive any signal from the key reminder switch.

N-1

P.54B-497

ETACS-ECU does not receive any signal from the hazard warning light
switch.

N-2

P.54B-501

ETACS-ECU does not receive any signal from any of the door switches.

N-3

P.54B-505

ETACS-ECU does not receive any signal from the door lock key cylinder
switch.

N-4

P.54B-512

ETACS-ECU does not receive any signal from the front door lock actuator. N-5

P.54B-517

ETACS-ECU does not receive any signal from the door lock switch
(incorporated in the power window main switch and front power window
sub switch).

N-6

P.54B-527

ETACS-ECU does not receive any signal from the trunk lid latch assembly. N-7

P.54B-537

Transmitter

ETACS-ECU does not receive any signal from the lock,
unlock, trunk or panic switch.

N-8

P.54B-540

ETACS-ECU does not receive any interior light loaded signal.

N-9

P.54B-542

DATA LINK
CONNECTOR

JUNCTION
BLOCK SIDE

FRONT
SIDE

ETACS-
ECU

Scan Tool Communication and ETACS-ECU Ground Circuit

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-65

.

TECHNICAL DESCRIPTION (COMMENT)

The SWS monitor kit may be connected improperly.

.

TROUBLESHOOTING HINTS

• The SWS monitor body (I/F cartridge) may be

defective

• The SWS monitor harness may be defective

• The wiring harness or connectors may have

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

• The ETACS-ECU may be defective

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

• MB991813: SWS Monitor Kit

• MB991806: SWS Monitor Cartridge

• MB991812: SWS Monitor Harness (For Column-ECU)

• MB991822: Probe Harness

STEP 1. Verify SWS monitor kit MB991813 for proper
connection.
Q: Is SWS monitor kit MB991813 connected with the

column switch properly?
YES :
Go to Step 2.
NO : Connect SWS monitor kit MB991813 to the column

switch securely.

AC305231BJ

CONNECTORS: C-03, C-125

C-03

C-125 (B)

AC305415AN

CONNECTOR: C-211

AC305413

C-219

C-218 (GR)

CONNECTORS: C-218, C-219

AM

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-66

STEP 2. Verify the power supply circuit to the ETACS-ECU.
Q: Does the system communicate with scan tool

MB991958 when the ignition switch is turned to the
"ON" position?
YES :
Refer to Inspection Procedure A-3 "Communication

with the ETACS-ECU is not possible

P.54B-78

."

NO : Go to Step 3.

STEP 3. Check ETACS-ECU connectors C-218 and C-219
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are ETACS-ECU connectors C-218 and C-219 in good

condition?
YES :
Go to Step 4.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. Verify that the system should communicate

with the SWS monitor normally.

AC305414

CONNECTORS: C-218, C-219

JUNCTION BLOCK
(REAR VIEW)

C-219

C-218 (GR)

HARNESS SIDE

C-218

C-219

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

JUNCTION BLOCK SIDE

AC

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-67

STEP 4. Check the ground circuit to the ETACS-ECU.
Measure the resistance at ETACS-ECU connectors C-218
and C-219.
(1) Disconnect ETACS-ECU connectors C-218 and C-219, and

measure the resistance available at the junction block side
of the connector.

(2) Measure the resistance value between ETACS-ECU

connector C-218 terminal 56 and ground.

• The resistance should be 2 ohms or less.

Measure the resistance value between ETACS-ECU
connector C-219 terminal 3 and ground.

• The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 6.
NO : Go to Step 5.

AC305414

CONNECTORS: C-218, C-219

JUNCTION BLOCK
(REAR VIEW)

C-219

C-218 (GR)

HARNESS SIDE

C-218

C-219

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

JUNCTION BLOCK SIDE

AC

68

74

63

66

72

73

67

6564

61

70

71

62

69

60

57

58

59

5655

52

54 53

51

AC209839AB

CONNECTOR C-218
(HARNESS SIDE)

2019 18 1716 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

AC209857AB

CONNECTOR C-219
(JUNCTION BLOCK SIDE)

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Текст

Политика конфиденциальности