Mitsubishi Outlander XL. Manual - part 883

No. 9 and 10 <2nd squib>) and the clock spring connector
C-207 (terminal No.4 and 3 <1st squib> or terminal No. 2 and
1 <2nd squib>) for open circuit.

(1)

Disconnect  SRS-ECU  connector  C-28  and  clock  spring
connector C-207.

ZC600210

A

Lock lever

0000

(2)

While  pushing  the  part  "A"  indicated  in  the  figure  of  the
harness side connector, turn the lock lever to the direction of
the arrow to release the lock lever, and disconnect the C-28
SRS-ECU connector.

To  prevent  the  air  bag  from  deploying  unintentionally,
disconnect the clock spring connector C-207 to short the
squib circuit.

(3)

Disconnect the clock spring connector C-207.

ZC500788

<1st squib>

C-207 Harness side  
connector (rear view)

0010

C-28 Harness side  
connector (front view)

ZC500788

C-28 Harness side  
connector (front view)

<2nd squib>

C-207 Harness side  
connector (rear view)

0011

Do not insert a probe into the terminal from C-207 harness
side connector front side directly, as the connector contact
pressure may be weakened.

(4)

Check  for  continuity  between  the  following  terminals.  It
should be less than 2 ohms.

<1st squib>

｠

SRS-ECU connector C-28 (terminal No.5) and the clock
spring connector C-207 (terminal No.4)

｠

SRS-ECU connector C-28 (terminal No.6) and the clock
spring connector C-207 (terminal No.3)

<2nd squib>

｠

SRS-ECU connector C-28 (terminal No.9) and the clock
spring connector C-207 (terminal No.1)

｠

SRS-ECU connector C-28 (terminal No.10) and the clock
spring connector C-207 (terminal No.2)

Q:Does continuity exist?

YES:

 Erase the diagnostic trouble code memory, and check

the diagnostic trouble code. If DTCB1B02 <1st squib> or
B1B06 <2nd squib> set, replace the SRS-ECU. (Refer to P.
52B-326). Then go to Step 6.

NO:

 Replace the harness wires between SRS-ECU connector

C-28 and clock spring connector C-207. Then go to Step 6.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-63

SRS AIR BAG DIAGNOSIS

STEP 6. Recheck for diagnostic trouble code.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

Check again if the DTC is set.

(1)

Erase the DTC.

(2)

Turn the ignition switch to the "ON" position.

(3)

Check if the DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is DTCB1B02 <1st squib> or B1B06 <2nd squib> set?

YES:

 Return to Step 1.

NO:

 The procedure is complete.

DTC B1B03: Driver's Air Bag Module (1st squib) System (Short Circuit Between Squib
Circuit Terminals)

52B-64

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS AIR BAG DIAGNOSIS

DTC B1B07: Driver's Air Bag Module (2nd squib) System (Short Circuit Between Squib
Circuit Terminals)

M15204000928USA0000010000

SRS-ECU

DRIVER'S AIR BAG 
MODULE (SQUIB)

CLOCK 
SPRING

Driver's Air Bag Modle (Squib) Circuit

: CONNECTOR LOCK SWITCH
  CONNECTOR COUPLED : ON
  CONNECTOR UNCOUPLED : OFF

NOTE

ZC6008760000

Connector: C-28

C-28 (Y)

ZC6008770004

Connectors: C-205, C-207

C-205 (Y)

C-207 (Y)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-65

SRS AIR BAG DIAGNOSIS

 

If DTC B1B03 <1st squib> or B1B07 <2nd squib>
is set in the SRS-ECU, always diagnose the CAN
bus lines.

CIRCUIT OPERATION

｠

The SRS-ECU judges how severe a collision is by
detecting signals from the front impact sensors and
the front air bag analog G-sensor. If the impact is
over a predetermined level, the SRS-ECU sends an
ignition signal. At this time, if the front air bag safing
G-sensor is on, the SRS air bag will inflate.

｠

The ignition signal is input to the air bag module via
the clock spring to inflate the air bag.

DTC SET CONDITIONS

｠

This  DTC  is  set  if  there  is  abnormal  resistance
between the input terminals of the driver's air bag
module (squib). The most likely causes for this code
to be set are the followings:

｠

Short circuit in driver’s air bag module (squib)
or harness

｠

Short circuit in the clock spring

TROUBLESHOOTING HINTS

｠

Improper  engaged  connector  or  defective  short
spring*

｠

Short circuit in the clock spring

｠

Short  circuit  between  the  driver's  air  bag  module
(squib) circuit terminals

｠

Damaged connector(s)

｠

Malfunction of the SRS-ECU

NOTE: 

*: The squib circuit connectors integrate a

"short" spring (which prevents the air bag from
deploying unintentionally due to static
electricity by shorting the positive wire to the
ground wire in the squib circuit when the
connectors are disconnected). (Refer to P.52B-5).
Therefore, if connector C-28, C-205 or C-207 is
damaged or improperly engaged, the short spring
may not be released when the connector is
connected.

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

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

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910:  M.U.T.-III  Main  Harness  A  (Vehicles  with
CAN communication system)

｠

MB991865: Dummy resistor

｠

MB991866: Resister harness

52B-66

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS AIR BAG DIAGNOSIS