Mitsubishi Outlander XL. Manual - part 885

YES:

 Go to Step 8.

NO:

 Replace the harness wires between SRS-ECU connector

C-28 and clock spring connector C-207. Then go to Step 8.

STEP 8. 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 DTC B1B03 <1st squib> or B1B07 <2nd squib> set?

YES:

 Return to Step 1.

NO:

 The procedure is complete.

DTC B1B08: Passenger's (Front) Air Bag Module (1st squib) System (Shorted to Squib
Circuit Ground)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-71

SRS AIR BAG DIAGNOSIS

DTC B1B0C: Passenger's (Front) Air Bag Module (2nd squib) System (Shorted to Squib
Circuit Ground)

M15204000934USA0000010000

PASSENGER'S (FRONT)   
AIR BAG MODULE
(SQIUB)

SRS-ECU

CONNECTOR LOCK SWITCH  
CONNECTOR COUPLED: ON  
CONNECTOR UNCOUPLED: OFF

NOTE

:    
 
 
 

Passen ger's (F ront) Air B ag Module (Squib) Ci rcuit

ZC600876

Connector: C-11, C-28

C-11 (Y)

0023

C-28 (Y)

 

If DTC B1B08 <1st squib> or B1B0C <2nd squib>
is set in the SRS-ECU, always diagnose the CAN
main bus line.

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 to
inflate the air bag.

52B-72

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS AIR BAG DIAGNOSIS

DTC SET CONDITIONS
This  DTC  is  set  if  there  is  abnormal  resistance
between the input terminals of the passenger's (front)
air bag module (squib).

TROUBLESHOOTING HINTS

｠

Damaged harness wires and connectors

｠

Short to the ground in the passenger's (front) air bag
module (squib) harness

｠

Malfunction of the SRS-ECU

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

STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition  switch  to  the  "LOCK"  (OFF)  position  before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
scan tool P.52B-31."

(2)

Turn the ignition switch to the "ON" position.

(3)

Diagnose the CAN bus line.

(4)

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

Q:Is the CAN bus line found to be normal?

YES:

 Go to Step 2.

NO:

 Repair the CAN bus line (Refer to GROUP 54D,

Diagnosis P.54D-17).

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-73

SRS AIR BAG DIAGNOSIS

STEP 2. 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 the DTC set?

YES:

 Go to Step 3.

NO:

 There is an intermittent malfunction such as poor

engaged connector(s) or open circuit (Refer to GROUP 00,
How to Cope with Intermittent Malfunction P.00-15).

STEP 3. Check the passenger's (front) air bag module.
(Using scan tool MB991958, read the diagnostic trouble
code.)

(1)

Disconnect the negative battery terminal.

(2)

Disconnect the passenger’s (front) air bag module connector
C-11.

ZC6002130000

Outer housing of the Passenger's (front) air bag  
module connector 

(3)

Slide  the  outer  housing  of  the  clock  spring  side  of
passenger’s  (front)  air  bag  module  connector  C-11  in  the
arrow direction shown, and disconnect the connector.

ZC6022420000

MB991865 
(Dummy resistor: 3    )

MB991866  
(Resistor harness)

C-11 Harness  

side connector

C-11 Passenger's (front)  

air bag module connector

(4)

Connect special tool MB991865 to special tool MB991866.

Do not insert a test probe into the terminal from its front side
directly,  as  the  connector  contact  pressure  may  be
weakened.

(5)

Insert special tool MB991866 into the harness side connector
C-11 (terminal No.1 and 2 <1st squib> or terminal No.3 and
4 <2nd squib>) by backprobing.

52B-74

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS AIR BAG DIAGNOSIS