Mitsubishi Montero (2004+). Manual - part 534

 

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Mitsubishi Montero (2004+). Manual - part 534

 

 

SIDE STEP LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-105

 STEP 12. Check side step light assembly (RH) connector 
F-30 for loose, corroded or damaged terminals, or 
terminals pushed back in the connector.
Q:  Is side step light assembly (RH) connector F-30 in good 

condition?
YES : 
Go to Step 13.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

Verify that the side step light illuminate 

normally.

 STEP 13. Check the wiring harness between side step 
light assembly (RH) connector F-30 (terminal 1) and 
ground.

Q:  Is the wiring harness between side step light assembly 

(RH) connector F-30 (terminal 1) and the ground in good 
condition?
YES : 
Replace the side step light-ECU. Verify that the side 

step light illuminate normally.

NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. Verify that 
the side step light illuminate normally.

STEP 14. Check the side step light bulb (LH: FRONT).
Q: Is the side step light bulb in good condition?

YES : Replace the side step light harness (LH). Refer to 

P.54A-116

Verify that the side step light illuminate 

normally.

NO :  Replace the bulb (LH: FRONT). Refer to 

P.54A-115

Verify that the side step light illuminates normally.

STEP 15. Check the side step light bulb (LH: REAR).
Q: Is the side step light bulb in good condition?

YES : Replace the side step light harness (LH). Refer to 

P.54A-116

Verify that the side step light illuminate 

normally.

NO :  Replace the bulb (LH: REAR). Refer to 

P.54A-115

Verify that the side step light illuminates normally.

AC204177

CONNECTOR : F-30

AH

HARNESS SIDE

F-30(B)

F-30(B)

1

2

AC204177

CONNECTOR : F-30

AH

HARNESS SIDE

F-30(B)

F-30(B)

1

2

SIDE STEP LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-106

STEP 16. Check the side step light bulb (RH: FRONT).
Q: Is the side step light bulb in good condition?

YES : Replace the side step light harness (RH). Refer to 

P.54A-116

Verify that the side step light illuminate 

normally.

NO :  Replace the bulb (RH: FRONT). Refer to 

P.54A-115

Verify that the side step light illuminates normally.

STEP 17. Check the side step light bulb (RH: REAR).
Q: Is the side step light bulb in good condition?

YES : Replace the side step light harness (RH). Refer to 

P.54A-116

Verify that the side step light illuminate 

normally.

NO :  Replace the bulb (RH: REAR). Refer to 

P.54A-115

Verify that the side step light illuminates normally.

INSPECTION PROCEDURE 3: The Side Step Light do not Illuminate Normally when the Door is 
Unlocked or Locked.

Side Step Light-ECU Circuit

SIDE STEP LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-107

.

TECHNICAL DESCRIPTION (COMMENT) 
If left or right side step light do not illuminate, the 
input circuit from the ETACS-ECU or the side step 
light-ECU may be defective.

.

TROUBLESHOOTING HINTS

• The side step light-ECU may be defective

• The ETACS-ECU may be defective

• The wiring harness or connectors may have 

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

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

 STEP 1. Check the central door lock system operation.
Q: Does the central door lock system work normally?

 YES : Go to Step 2.
 NO :  Refer to GROUP 54B, Inspection Procedure C-1 "The 

central door lock system does not work at all 

P.54B-95

."

 STEP 2. Check the side step light operation.

The side step light should operate when the doors are locked 
and unlocked.
Q:  Do the side step lights illuminate normally when the 

doors are unlocked?
 YES : 
Go to Step 3.
 NO :  Go to Step 5.

AC204170

CONNECTOR : D-137

AX

D-137(GR)

AC204173

CONNECTOR : D-217               

AM

AC204174

CONNECTOR : D-222            

AE

SIDE STEP LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-108

 STEP 3. Check side step light-ECU connector D-137 and 
ETACS-ECU connector D-222 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q:  Is side step light-ECU connector D-137 and ETACS-ECU 

connector D-222 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 side step light illuminate 

normally.

 STEP 4. Check the wiring harness between side step 
light-ECU connector D-137 (terminal 3) and ETACS-ECU 
connector D-222 (terminal 4).

AC204170

CONNECTOR : D-137

HARNESS SIDE

D-137(GR)

D-137(GR)

AR

1

2

8 7

4

5

10

11

12

6

9

3

AC204174

CONNECTOR : D-222

AB

1

2

3

5

6

4

9 8

121110

13

15 14

16

17

7

19

20

18

JUNCTION BLOCK SIDE

D-222

AC204170

CONNECTOR : D-137

HARNESS SIDE

D-137(GR)

D-137(GR)

AR

1

2

8 7

4

5

10

11

12

6

9

3

AC204174

CONNECTOR : D-222

AB

1

2

3

5

6

4

9 8

121110

13

15 14

16

17

7

19

20

18

JUNCTION BLOCK SIDE

D-222

 

 

 

 

 

 

 

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