Mitsubishi Montero (2004+). Manual — part 1188

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-87

STEP 2. Check the circuit between the SRS-ECU and the
ignition switch (IG1).
(1) Disconnect the negative battery terminal.
(2) Disconnect SRS-ECU connector E-08.
(3) Connect the negative battery terminal.
(4) Turn the ignition switch to the "ON" position.

CAUTION

Do not insert a test probe into the terminal from its front
side directly as the connector contact pressure may be
weakened.
(5) Measure the Voltage between E-08 harness connector

terminal 16 and body ground.
Voltage should measure 9 volts or more.

Q: Is the measured voltage within the specified range?

YES : Erase the diagnostic trouble code memory, and check

the diagnostic trouble code. If DTC 41 sets, replace
the SRS-ECU (Refer to

P.52B-215

). Then go to Step

8.

NO : Go to Step 3.

STEP 3. Check the harness for open circuit between
SRS-ECU connector E-08 (terminal No.16) and the ignition
switch connector D-204 (terminal No.2).

ACX01478AM

CONNECTOR: E-08

E-08 (Y)

HARNESS SIDE
CONNECTOR
(REAR VIEW)

13 14 15 16 17 18 19 20

5 6 7 8 9 10 11 12

1 2

3 4

AC203786AE

E-08 HARNESS SIDE
CONNECTOR
(REAR VIEW)

ACX01478AM

CONNECTOR: E-08

E-08 (Y)

HARNESS SIDE
CONNECTOR
(REAR VIEW)

AC204226AG

CLOCK SPRING

CONNECTOR: D-204

D-204

HARNESS
SIDE
CONNECTOR
(FRONT VIEW)

2
5

6

3

4

1

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-88

NOTE: After inspecting junction block connectors D-210 and
D-208, inspect the wiring harness. If junction block connectors
are damaged, repair or replace them (Refer to GROUP 00E,
Harness Connector Inspection

P.00E-2

). Then go to Step 8.

Q: Are harness between SRS-ECU connector E-08

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

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

STEP 4. Check a burned-out fuse.
(1) Replace the fuse.
(2) Turn the ignition switch to the "ON" position, wait for at least

one minute and then turn the ignition switch to the "LOCK"
(OFF) position.

(3) Check the fuse.
Q: Is the fuse in good condition?

YES : Go to Step 8.
NO : Go to Step 5.

AC204257

CONNECTORS : D-208, D-210

AH

D-210

D-208

D-208 HARNESS SIDE
CONNECTOR (FRONT VIEW)

D-210 HARNESS SIDE
CONNECTOR (FRONT VIEW)

1

2

3

5

6

4

JUNCTION BLOCK
(FRONT VIEW)

5 4

3 2

12

13

10

11

7

8

1

6

9

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-89

STEP 5. Check the harness for short circuit to ground
between the SRS-ECU and the junction block.
(1) Disconnect junction block connector D-210, and measure at

the wiring harness.

CAUTION

Do not insert a test probe into the terminal from its front
side directly as the connector contact pressure may be
weakened.
(2) Check for continuity between D-210 harness connector

terminal 2 and body ground.
It should be open circuit.

Q: Does continuity exist?

YES : Go to Step 6.
NO : Go to Step 8.

AC204257

CONNECTOR : D-210

AK

D-210

D-210 HARNESS SIDE
CONNECTOR (FRONT VIEW)DE

JUNCTION BLOCK
(FRONT VIEW)

5 4

3 2

12

13

10

11

7

8

1

6

9

AC204259

1 2 3

4

12

9

8

7

6

10

5

13

11

AC

D-210 HARNESS SIDE
CONNECTOR
(REAR VIEW)

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-90

STEP 6. Check the power supply circuite for short circuit
to ground at the SRS-ECU connector E-08.
(1) Disconnect SRS-ECU connector E-08, and measure at the

wiring harness.

CAUTION

Do not insert a test probe into the terminal from its front
side directly as the connector contact pressure may be
weakened.
(2) Check for continuity between E-08 harness connector

terminal 16 and body ground.
It should be open circuit.

Q: Is the circuit normal?

YES : Erase the diagnostic trouble code memory, and check

the diagnostic trouble code. If DTC 41 sets, replace
the SRS-ECU (Refer to

P.52B-215

). Then go to Step

8.

NO : Go to Step 7.

ACX01478AM

CONNECTOR: E-08

E-08 (Y)

HARNESS SIDE
CONNECTOR
(REAR VIEW)

AC204769

13 14 15 16 17 18 19 20

5 6 7 8 9 10 11 12

1 2

3 4

AC

E-08 HARNESS SIDE
CONNECTOR (REAR VIEW)