Mitsubishi Grandis. Manual - part 1048

PASSENGER AIR BAG CUT OFF SWITCH

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-244

INSPECTION

M1524025400039

WARNING

If a dent, crack, deformation or rust is 
detected, replace with a new sensor.

NOTE: For checking of the seat slide sensor other 
than described below, refer to the section concerning 
SRS diagnosis (Refer to 

P.52B-13

).

1. Check the seat slide sensor for dent, cracks or 

deformation.

2. Check the connector for damage, and terminals 

for deformation.

3. Check that there is no bending or corrosion in the 

slide adjuster.

PASSENGER AIR BAG CUT OFF SWITCH

REMOVAL AND INSTALLATION

M1524026700011

WARNING

•

Never attempt to disassemble or repair the passenger’s air bag cut off switch. If faulty, 
replace it. 

•

Do not drop or subject the passenger’s air bag cut off switch to impact or vibration. 
Replace the passenger’s air bag cut off switch, if dents, cracking, deformation, or rust are 
present. 

•

Replace the passenger's air bag cut off switch with new one after deployment of the air 
bags.

Pre-removal Operation
• Turn the ignition key to the "LOCK" (OFF) position.

AC312597

AC312171

2

0.137 ± 0.04 N·m

1

AB

3

4

PASSENGER AIR BAG CUT OFF SWITCH

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-245

REMOVAL SERVICE POINT
<<A>> NEGATIVE BATTERY CABLE 
DISCONNECTION

DANGER

Wait at least 60 seconds after disconnecting 
the battery cable before doing any further 
work. (Refer to 

P.52B-7

).

WARNING

Battery posts, terminals and related 
accessories contain lead and lead 
compounds. WASH HANDS AFTER 
HANDLING.

Disconnect the negative battery cable from the 
battery and tape the terminal to prevent accidental 
connection and air bag deployment.

INSTALLATION SERVICE POINTS
>>A<< PRE-INSTALLATION INSPECTION

Check the passenger’s air bag cut off switch for 
dents, breakage and bending and measure the 
resistance between the terminals, even when 
installing a new passenger’s air bag cut off switch.

>>B<< PASSENGER’S AIR BAG CUT OFF 
SWITCH INSTALLATION

WARNING

If the passenger’s air bag cut off switch is 
not installed securely and correctly, the 
passenger’s (front) air bag may not operate 
normally.

Securely connect the connector.

>>C<< POST-INSTALLATION 
INSPECTION

1. Reconnect the negative battery cable.
2. Turn the ignition switch to the "ON" position.

3. Does the SRS warning lamp illuminate for about 7 

seconds, and go out?

4. If yes, the SRS system is functioning properly. If 

not, refer to 

P.52B-13

.

Removal steps

<<A>>

1.

Negative battery cable connection

•

Glove box assembly (Refer to 
GROUP 52A, Instrument panel 
assembly 

P.52A-2

).

2.

Glove box

3.

Glove box cover assembly

4.

Passenger’s air bag cut off switch
Installation steps

>>A<<

•

Pre-installation inspection

>>B<<

4.

Passenger’s air bag cut off switch

3.

Glove box cover assembly

2.

Glove box

•

Glove box assembly (Refer to 
GROUP 52A, Instrument panel 
assembly 

P.52A-2

).

1.

Negative battery cable connection

>>C<<

•

Post-installation inspection

ACX00583

Insulating tape

Battery

Battery cable (–)

AC

AC312598AB

Passenger's air bag
cut off switch

Glove box

AC312486

SRS warning lamp

AB

AC311370AB

Passenger's air bag
off indicator lamp

AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-246

5. Does the passenger’s air bag off indicator lamp 

illuminate for about 7 seconds, and go out?

6. If yes, the SRS system is functioning properly. If 

not, refer to 

P.52B-13

.

INSPECTION

M1524026800018

PASSENGER’S AIR BAG CUT OFF 
SWITCH CONTINUITY CHECK

AIR BAG MODULE AND SEAT BELT PRE-TENSIONER 

DISPOSAL PROCEDURES

M1524001200581

Before disposing of an air bag or a vehicle equipped 
with an air bag, follow the procedures below to 
deploy the air bag.

AC311368

PASSENGER

AIRBAG

ON

OFF

PASSENGER

AIRBAG

ON

OFF

AC312599

2

1

4

3

AB

C-107 
Passenger's 
air bag cut off 
switch connector

Passenger's (front)
air bag ON position 

Passenger's (front)
air bag OFF position 

Switch position Tester 

connection

Specified 
condition

Passenger’s 
(front) air bag ON 
position

1 

− 2

Less than 10m 
ohms

1 

− 4

Open circuit

Passenger’s 
(front) air bag 
OFF position

1 

− 2

Open circuit

1 

− 4

Less than 10m 
ohms

AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-247

UNDEPLOYED AIR BAG MODULE 
DISPOSAL

WARNING

•

If the vehicle is to be scrapped or 
otherwise disposed of, deploy the air 
bags and operate the seat belt 
pre-tensioner inside the vehicle. If the 
vehicle will continue to be used and only 
the air bag modules and seat belt 
pre-tensioner are to be disposed of, 
deploy the air bags and operate the seat 
belt pre-tensioner outside the vehicle.

•

Since a large amount of smoke is 
produced when the air bag is deployed 
and the seat belt pre-tensioner is 
operated, avoid residential areas 
whenever possible.

•

Since there is loud noise when the air 
bags are deployed and when the seat belt 
pre-tensioner are operated, avoid 
residential areas whenever possible. If 
anyone is nearby, give warning of the 
impending noise.

•

Suitable ear protection should be worn by 
personnel performing these procedures 
or by people in the immediate area.

DEPLOYMENT INSIDE THE VEHICLE 
(WHEN DISPOSING OF A VEHICLE) <AIR 
BAG MODULE (DRIVER'S SIDE)>

1. Move the vehicle to an isolated spot.

DANGER

Wait at least 60 seconds after the 
disconnection of the battery cable before 
any further job (Refer to 

P.52B-7

).

2. Disconnect the negative and positive battery 

cables from the battery terminals, and then 
remove the battery from the vehicle.

3. Remove the column cover lower (Refer to 

GROUP 37, Steering shaft 

P.37-16

).

4. Remove the connection between the C-309 clock 

spring connector (4-pin) and the harness side 
connector (4-pin, yellow).
NOTE: Once disconnected from the instrument 
panel wiring harness, both electrodes of the clock 
spring connector short automatically. This 
prevents the driver's air bag from accidental 
deployment caused by static, etc.

5. Obtain two suitable wires, which are 6 meters or 

longer, as deployment wires. Then connect the 
wires at one end to short.

6. Touch the vehicle's body with bare hands to 

discharge static in you.
NOTE: This prevents the air bag from 
unintentional deployment caused by static 
electricity, etc.

7. Cut with a pliers, etc. the instrument panel wiring 

harness shown in the figure of the instructions, 
while the C-309 clock spring connector is 
disconnected.

AC306757

C-309 Harness side
connector (4-pin, yellow)

C-309 
Clock spring 
connector
(4-pin)

AD

AC300381AB

Deployment wires

Connector

6m or longer

AC307147

Deployment wire

AC

Insulator tape

C-309
Clock spring
connector (4-pin)

Connection

C-309 Harness side
connector (4-pin, yellow)