Mitsubishi Montero (2004+). Manual — part 1217

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-203

NOTE: After inspecting junction block connector D-210, D-209
and D-208 inspect the wiring harness. If the junction block con-
nector D-210, D-209 or D-208 is damaged, repair or replace it
(Refer to GROUP 00E, Harness Connector Inspection

P.00E-2

). Then go to Step 8 .

Q: Are the harness wires between SRS-ECU connector

E-08 (terminal No.13 and 16) and ignition switch
connector D-204 (terminal No.2) in good condition?
YES : Go to Step 8.
NO : Repair the harness wires between SRS-ECU

connector E-08 and ignition switch connector D-204.
Then go to Step 8.

STEP 8. Retest the system.
Q: Does the scan tool communicate normally with the SRS

system?
YES : The procedure is complete. (If no malfunctions are

not found in all steps, an intermittent malfunction is
suspected. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points

− How to

Cope with Intermittent Malfunction

P.00-6

).

NO : Return to Step 1.

AC204257

CONNECTORS : D-208, D-209, D-210

AL

D-210

D-210 HARNESS SIDE
CONNECTOR (FRONT VIEW)

JUNCTION BLOCK
(FRONT VIEW)

5 4

3 2

12

13

10

11

7

8

1

6

9

D-209

D-208

D-209 HARNESS SIDE
CONNECTOR (FRONT VIEW)

D-208 HARNESS SIDE
CONNECTOR (FRONT VIEW)

1

2

3

5

6

4

5 4 3

2

12

13

10

11

7

8

1

6

9

SPECIAL TOOLS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-204

SPECIAL TOOLS

M1524000700516

TOOL

TOOL NUMBER AND
NAME

SUPERSESSION

APPLICATION

MB990784
Ornament remover

General service tool

Removal of cover.

MB991958

A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991914
F: MB991825
G: MB991826

MUT-III sub assembly

A: Vehicle

communication
interface (V.C.I.)

B: MUT-III USB cable
C: MUT-III main harness

A (Vehicles with CAN
communication
system)

D: MUT-III main harness

B (Vehicles without
CAN communication
system)

E: MUT-III main harness

C (for Daimler Chrysler
models only)

F: MUT-III measurement

adapter

G: MUT-III trigger

harness

MB991824-KIT
NOTE: G: MB991826
MUT-III trigger harness
is not necessary when
pushing V.C.I. ENTER
key.

SWS communication line check
(ECU check and service data)

CAUTION

MUT-III main harness B
(MB991911) should be used.
MUT-III main harness A and C
should not be used for this
vehicle.

MB990784

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

A

B

C

D

E

F

G

DO NOT USE

DO NOT USE

TEST EQUIPMENT

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-205

TEST EQUIPMENT

M1524000800331

SRS MAINTENANCE

M1524003900337

The SRS must be inspected by an authorized dealer up to 10
years after the date of vehicle registration (Refer to GROUP 00,
Maintenance Service

− SRS Maintenance

P.00-50

).

MB991865

Dummy resistor

SRS air bag circuit check

MB991866

Resistor harness

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 tools

Checking the continuity and
measuring the voltage at the
SRS-ECU harness connector

MB686560
SRS air bag adapter
harness

General service tool

• Deployment of air bag module

(Front passenger's side) inside
the vehicle

• Deployment of air bag module

(Front passenger's side), seat
belt with pre-tensioner outside
the vehicle

TOOL

TOOL NUMBER AND
NAME

SUPERSESSION

APPLICATION

MB991865

MB991866

MB991223

A

D

C

B

AG

MB686560

TOOL

NAME

USE

Digital multi-meter
Use a multi-meter for which the maximum
test current is 2 mA or less at the minimum
range of resistance measurement

Checking the SRS electrical circuitry with
SRS check harness

AC000019AB

POST-COLLISION DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-206

POST-COLLISION DIAGNOSIS

M1524001100539

To inspect and service the SRS after a collision (whether or not
the air bags have deployed), perform the following steps.

SRS-ECU MEMORY CHECK

Required Special Tools:

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

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

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main Harness B (Vehicles without

CAN communication system)

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector

(16-pin).

2. Read (and write down) all displayed diagnostic trouble

codes (Refer to

P.52B-21

).

NOTE: If the battery power supply has been disconnected or
disrupted by the collision, scan tool MB991958 cannot com-
municate with the SRS-ECU. Check the battery then check
and, if necessary, repair the front wiring harness and the
body wiring harness before proceeding.

3. Read the data list (fault duration and how many times

memories are erased) using scan tool MB991958.

Data list

4. Erase the diagnostic trouble codes and, after waiting five

seconds or more, read (and write down) all displayed
diagnostic trouble codes (Refer to

P.52B-23

).

AC307591 AB

MB991911

DATA LINK

CONNECTOR

MB991824

MB991827

NO.

SERVICE DATA ITEM

APPLICABILITY

92

Number indicating how often the memory is cleared

Maximum time to be stored: 250

93

How long a problem has lasted (How long it takes from
the occurrence of the problem till the first air bag squib
igniting signal)

Maximum time to be stored: 9,999 minutes
(approximately seven days)

94

How long a problem has lasted (How long it takes from
the first air bag squib igniting signal till now).