Mitsubishi Grandis. Manual — part 225

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-362

NOTE:

Prior to the wiring harness inspection, check
intermediate connector C-15 <RH drive vehicles>,
C-16 <LH drive vehicles>, G-21 <LH drive vehicles>
and junction block connector C-201, and repair if
necessary.

• Check the output lines for open circuit.

Q: Is the check result normal?

YES :

Go to Step 14.

NO :

Repair the wiring harness.

Step 14. Connector check: C-221 ETACS-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 15.

NO :

Repair the defective connector.

AC310615

AD

Connector: C-15 <LHD>

AC310631 AD

Connector: C-16 <RHD>

AC310220

Connector: G-21 <LHD>

AC

AC310626

Connector: C-221

Junction block (Rear view)

<LHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC310620

Connector: C-221

Junction block
(Rear view)

<RHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-363

Step 15. Check the wiring harness between C-213
rear fog lamp relay connector terminal No.2 and
C-221 ETACS-ECU connector terminal No.74.

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-364

NOTE: Prior to the wiring harness inspection, check
junction block connector C-201, and repair if
necessary.

• Check the output lines for open circuit.

Q: Is the check result normal?

YES :

Go to Step 16.

NO :

Repair the wiring harness.

Step 16. Retest the system.

Check that the rear fog lamps illuminate normally.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

Cope with Intermittent Malfunction

P.00-5

).

NO :

Replace the ETACS-ECU.

AC310624

Connectors: C-201, C-213 <LHD>

AR

Junction block (Front view)

C-213

Harness side

C-201

C-201

Junction block side

C-213

AC310619

Connectors: C-201, C-213 <RHD>

AR

Junction block (Front view)

C-213

Harness side

C-201

C-201

Junction block side

C-213

AC310626

Connector: C-221

Junction block (Rear view)

<LHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC310620

Connector: C-221

Junction block
(Rear view)

<RHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-365

Inspection Procedure O-3: Any of the front fog lamps does not illuminate.

CAUTION

Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

If any of the front fog lamps do not illuminate, the
wiring harness connector(s), the bulb or the fuse may
be defective or burned out.

POSSIBLE CAUSES

• Burned-out front fog lamp bulb

• Damaged harness wires and connectors

Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet

RELAY
BOX

FRONT FOG
LAMP RELAY

FRONT-ECU

FRONT
FOG LAMP
(LH)

FRONT
FOG LAMP
(RH)

FUSIBLE
LINK

26

Front Fog Lamp Circuit