Mitsubishi Montero (2002-2004). Manual — part 484

SIDE STEP LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-107

NOTE: Also check intermediate connector D-111, junction
block connectors D-209 and D-217 for loose, corroded, or dam-
aged terminals, or terminals pushed back in the connector. If
intermediate connector D-111, junction block connector D-209
or D-217 is damaged, repair or replace the connector as
described in GROUP 00E, Harness Connector Inspection

P.00E-2

.

Q: Is the wiring harness between side step light-ECU

connector D-137 (terminal 9) and rear door switch (RH)
connector F-05 (terminal 2) 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.

AC204171

CONNECTOR : D-111

AC

9

8

6 7

5

3 4

20

32

21

33

43

17 18

30

41

16

29

28

39 40

13

25

12

24

35 36

14

26

37

15

27

38

19

31

42

1

10

22

2

11

23

34

AC204191

CONNECTORS : D-209, D-221

D-209

AH

HARNESS SIDE

HARNESS SIDE

D-217

D-209

D-217

1

2

6

7

9

3

4

11

12

10

5

13

8

8

1

11 10

3

4

12

9

2

13

14

6 5

15

7

SIDE STEP LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-108

SPECIAL TOOL

M1544000600287

SIDE STEP LIGHT-ECU INSPECTION

M1542012400013

TOOL

TOOL NUMBER
AND NAME

REPLACED BY MILLER
TOOL NUMBER

APPLICATION

MB991223
A: MB991219
B: MB991220
C: MB991221
D: MB991222
Harness set
A: Test harness
B: LED harness
C: LED harness

adapter

D: Probe

General service tool
(jumper)

Making voltage and
resistance measurements
during troubleshooting

A: Connect pin contact

pressure inspection

B: Power circuit

inspection

C: Power circuit

inspection

D: Commercial tester

connection

MB991223

A

B

C

D

AC

AC203981

4

10

1

7 8 9

2 3

12

11

5 6

TERMINAL NO.

SIGNAL

CHECKING REQUIREMENT TERMINAL VOLTAGE

1

Battery power supply

Always

Battery positive voltage

2

Power supply to ignition
switch (IG1)

Ignition switch "LOCK" (OFF)
position

0 V

Ignition switch "ON" position

Battery positive voltage

3

Input of lock relay signal
from ETACS-ECU

When door lock actuator is
operating (doors locked)

0 V

4

Output to side step light
(LH)

When side step light (LH) is
on

2 V or less

5

Output to side step light
(RH)

When side step light (RH) is
on

2 V or less

8

Input of unlock relay signal
from ETACS-ECU

When door lock actuator is
operating (doors unlocked)

Battery positive voltage

9

Output to all door switch

Ignition switch "LOCK"

0 V

12

Side step light-ECU ground Always

0 V

SIDE STEP LIGHT

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CHASSIS ELECTRICAL

54A-109

ON-VEHICLE SERVICE

BULB REPLACEMENT

M1542001300410

<Side Step LIght Bulb>

1. Turn the bulb socket counterclockwise together with the

bulb, and remove the bulb.

CAUTION

Do not touch the surface of the bulb with hands or dirty
gloves as the bulb may pop after a short time. If the sur-
face does become dirty, clean it with alcohol or thinner,
and let it dry thoroughly before installing.
2. Install the bulb to the bulb socket, and turn the bulb socket

clockwise together with the bulb.

REMOVAL AND INSTALLATION

M1542012300016

AC204016

AB

SIDE STEP LIGHT
ASSEMBLY
(REAR VIEW)

AC203940AB

2

1

4

3

6

5

7

4.9 ± 0.9 N·m
43 ± 8 in-lb

4.9 ± 0.9 N·m
43 ± 8 in-lb

2

4

3

6

5

7

SIDE STEP LIGHT REMOVAL
STEPS

1.

SIDE STEP LIGHT HARNESS
CONNECTION

2.

SIDE STEP LIGHT BRACKET

3.

SIDE STEP LIGHT ASSEMBLY

4.

SIDE STEP LIGHT UNIT

5.

SIDE STEP LIGHT HARNESS
AND BULB ASSEMBLY

6.

SIDE STEP LIGHT BULB

7.

SIDE STEP LIGHT HARNESS

SIDE STEP LIGHT REMOVAL
STEPS (Continued)

RHEOSTAT

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CHASSIS ELECTRICAL

54A-110

RHEOSTAT

REMOVAL AND INSTALLATION

M1542006000210

AC203956AB

8

4.9 ± 0.9 N·m
43 ± 8 in-lb

SIDE STEP LIGHT-ECU
REMOVAL STEPS

•

LOWER PANEL (REFER TO
GROUP 52A, INTERIOR

P.52A-

2

.)

8.

SIDE STEP LIGHT-ECU

AC204146AB

2

1

AC204146

RHEOSTAT REMOVAL STEPS

1. SWITCH PANEL
2. RHEOSTAT