Mitsubishi Montero (2002-2004). Manual — part 797

SRS AIR BAG DIAGNOSIS

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DIAGNOSIS

52Bb-57

STEP 7. Check the harness for short circuit to ground
between junction block connector D-210 (terminal No.1)
and combination meter connector D-03 (terminal No.62).
Q: Are harness wires between junction block connector D-

210 (terminal No.1) and combination meter connector D-
03 (terminal No.62) in good condition?
YES : Go to Step 10.
NO : Repair the harness wires between junction block

connector D-210 and combination meter connector D-
03. Then go to Step 10.

ACX01632

CONNECTOR: D-210

JUNCTION BLOCK
(FRONT VIEW)

AH

D-210

AC204231 AC

D-03 (GR)

CONNECTOR : D-03

D-03 HARNESS CONNECOR:
COMPONENNT SIDE

60

51

65

59

63 62 61

64

54

52

53

55

56

67 66

57

58

SRS AIR BAG DIAGNOSIS

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DIAGNOSIS

52Bb-58

STEP 8. Check the harness for short circuit to ground
between the SRS-ECU and the junction block.
(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.52Ba-31

.) Then go to Step

10.

NO : Go to Step 9.

ACX01478 AG

CONNECTOR: E-08

E-08 (Y)

AC204769

13 14 15 16 17 18 19 20

5 6 7 8 9 10 11 12

1 2

3 4

AB

E-08 HARNESS CONNECTOR:
HARNESS SIDE

SRS AIR BAG DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DIAGNOSIS

52Bb-59

STEP 9. Check the harness for short circuit ground
between SRS-ECU connector E-08 (terminal No.16) and
junction block connector D-210 (terminal No.2).
Q: Are harness wires between SRS-ECU connector E-08

(terminal No.16) and junction block connector D-210
(terminal No.2) in good condition?
YES : Go to Step 10.
NO : Repair the harness wire between SRS-ECU

connector E-08 and junction block connector D-210.
Then go to Step 10.

STEP 10. Recheck for diagnostic trouble code.
Q: Is DTC 41 set?

YES : Return to Step 1.
NO : 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

.)

ACX01478AH

CONNECTOR: E-08

E-08 (Y)

HARNESS
CONNECTOR:
HARNESS SIDE

AC204257

CONNECTOR : D-210

AD

D-210

D-210 HARNESS CONNECTOR:
COMPONENT SIDE

JUNCTION BLOCK
(FRONT VIEW)

5 4

3 2

12

13

10

11

7

8

1

6

9

SRS AIR BAG DIAGNOSIS

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DIAGNOSIS

52Bb-60

DTC 42: IG1 Power Circuit System (Fuse No.8 Circuit)

.

CIRCUIT OPERATION

• The SRS-ECU is powered from the ignition

switch (IG1).

• The SRS-ECU power is supplied from two cir-

cuits. Even if one circuit is shut off, the air bag
can inflate.

.

ACX01631

IG1 Power Circuit System (Fuse No.8 Circuit)

AC

ACX01632

CONNECTORS: D-208, D-210

D-208

D-210

JUNCTION BLOCK
(FRONT VIEW)

AG

ACX01478 AG

CONNECTOR: E-08

E-08 (Y)