Mitsubishi Montero (1998+). Manual — part 28

component. Failure to do this may result in accidental air

bag deployment and possible personal injury. Refer to

DISABLING & ACTIVATING AIR BAG SYSTEM.

* For about 60 seconds after air bag system is disabled, it

retains enough voltage to deploy air bags. After disabling

system, wait at least 60 seconds before servicing.

* After servicing, always turn ignition on from passenger-side

of vehicle in case of accidental air bag deployment.

* After servicing, check SRS warning light to verify system

operation. See SYSTEM OPERATION CHECK.

* Always wear safety glasses when servicing or handling an

air bag.

* The SRS-ECU must be stored in its original special container

until used for service. It must be stored in a clean, dry

place, away from sources of extreme heat, sparks and high

electrical energy.

* DO NOT expose air bag module and clockspring to temperatures

greater than 200 F (93 C).

* When placing a live air bag module on a bench or other

surface, always face air bag module and trim cover up, away

from surface. This will reduce motion of module if air bag

accidentally deploys.

* After air bag deploys, air bag surface may contain deposits

of sodium hydroxide, which irritates skin. Always wear

safety glasses, rubber gloves and long-sleeved shirt during

clean-up. Wash hands using mild soap and water. Follow

correct clean-up and disposal procedures. Refer to

DISPOSAL PROCEDURES.

* Because of critical system operating requirements, DO NOT

service any SRS components. Repairs are only made by

replacing defective part(s).

* DO NOT allow any electrical source near inflator on the back

of air bag module.

* When carrying a live (undeployed) air bag module, trim cover

must be pointed away from body to minimize injury in case of

accidental air bag deployment.

* DO NOT probe wire harness connector terminals. Instead, use

SRS Check Harness (MB991530).

* DO NOT probe a wire through insulator, as this will damage

it and eventually cause failure due to corrosion.

* When performing electrical tests, prevent accidental

shorting of terminals. Such shorts can damage fuses or

components and may cause a second fault code to set, making

diagnosis of original problem more difficult.

* Never use an analog volt/ohm meter or test light in place of

a Digital Volt/Ohm Meter (DVOM). Use only a DVOM with a

maximum test current of 2 mA (milliamps) at minimum range of

resistance measurement. Also see SPECIAL TOOLS.

* If SRS is not fully functional for any reason, DO NOT drive

vehicle until system is repaired and is fully functional. DO

NOT remove bulbs, modules, sensors or other components, or

in any way disable system from operating normally. If SRS is

not functional, park vehicle until repairs are made.

SPECIAL TOOLS

To avoid air bag deployment when working on SRS, DO NOT use

electrical test equipment such as test lights, battery or A/C-powered

volt/ohmmeter, or any type of electrical equipment other than those

specified by manufacturer. See SRS RECOMMENDED TOOLS table.

SRS RECOMMENDED TOOLS TABLE

Tool Name Tool Number

For Component Replacement

Steering Wheel Puller . . . . . . . MB990803

For Testing SRS

Digital Volt-Ohm Meter (DVOM) . . . . . .. ( 1)

Multi-Use Tester II . . . . . . ... MB991502

ROM Pack . . . . . . . . . . ... ( 2)

SRS Check Harness . . . . . . . . MB991613

For Deploying Air Bags

SRS Air Bag Adapter Harness "A" (3) . . ... MB686560

SRS Air Bag Adapter Harness "B" (4) . . ... MB628919

(1) - Maximum current output of DVOM must not exceed 2 mA

(milliamps) when set on minimum range of resistance

measurement.

(2) - ROM pack is used with multi-use tester.

(3) - For on-vehicle deployment of driver-side air bag. For

on-vehicle or off-vehicle deployment of passenger-side

air bag.

(4) - For off-vehicle deployment of driver-side air bag.

DISABLING & ACTIVATING AIR BAG SYSTEM

WARNING: SRS system voltage is maintained for about 60 seconds after

battery cable is disconnected. After disconnecting battery

cable, wait at least 60 seconds before servicing SRS.

Failure to wait may cause accidental air bag deployment and

possible personal injury.

To disable system, turn ignition switch to LOCK position.

Disconnect negative battery cable. Shield cable end. Wait at least 60

seconds before servicing. To activate system, reconnect negative

battery cable.

DISPOSAL PROCEDURES

WARNING: Undeployed air bag must be deployed before disposal.

Disposing of an undeployed air bag may violate federal,

state and/or local laws. This also applies to vehicles that

are to be scrapped. Never sell a used air bag module.

UNDEPLOYED AIR BAG

WARNING: Deploy air bag outdoors and away from people. Air bag

deployment makes a loud noise. NEVER deploy air bag module

with trim cover face down.

NOTE: If replacing a deployed air bag, both front impact sensors

and SRS-ECU must also be replaced. If vehicle is to be

scrapped, perform PROCEDURE 1 (ON-VEHICLE DEPLOYMENT) below.

If vehicle will continue to be operated, perform PROCEDURE 2

(OFF-VEHICLE DEPLOYMENT) below.

Procedure 1 (On-Vehicle Deployment)

1) Before proceeding, follow air bag service precautions. See

SERVICE PRECAUTIONS. Open all doors and windows. Move vehicle to an

isolated area. Disconnect negative battery cable and wrap tape around

cable terminal.

2) Disconnect positive battery cable. Remove battery. Wait at

least 60 seconds before continuing. Remove steering column lower

cover. Disconnect clockspring 2-pin Red connector.

3) Make a harness with two 20-foot (or longer) wires. Connect

wires at one end of this harness to SRS Air Bag Adapter Harness "A"

(MB686560). Wrap connections with insulating tape. See Fig. 2.

4) Temporarily connect other end of harness wires together to

prevent unexpected air bag deployment. Connect SRS air bag adapter

harness "A" to clockspring 2-pin Red connector. Run 20-foot wires

outside of vehicle as far away as possible from vehicle.

5) Ensure there are no loose parts in passenger compartment

and no one is within 20 feet of vehicle.

6) Deploy air bag by connecting ends of 20-foot wires to

terminals of a 12-volt battery. If air bags fail to deploy, go to

PROCEDURE 2 below. After deployment, allow air bag modules to cool and

dust to settle for at least 30 minutes before approaching vehicle.

Fig. 2: Connecting Wires To Air Bag Adapter Harness

Courtesy of Mitsubishi Motor Sales of America.

Procedure 2 (Off-Vehicle Deployment)

1) Before proceeding, follow air bag service precautions. See

SERVICE PRECAUTIONS. Turn ignition switch to LOCK position. Disconnect

negative battery cable. Shield cable end. Disconnect positive battery

cable. Remove battery. Wait at least 60 seconds before continuing.

2) Remove air bag module. Place air bag module on ground at

least 20 feet away from people or objects. Air bag module face (trim

cover) must face upward to prevent movement of air bag module when it

is deployed.

3) Make a harness with two 20-foot (or longer) wires. Connect

wires at one end of this harness to stripped wires of SRS Air Bag

Adapter Harness "B" (MB628919) for driver-side air bag, or SRS Air Bag

Adapter Harness "A" (MB686560) for passenger-side air bag. See Fig. 2.

4) Wrap connections with insulating tape. Temporarily connect

other end of harness wires together to prevent unexpected air bag

deployment. Connect appropriate adapter harness to air bag module

connector. Place a tire without a rim over the air bag module so rim

hole surrounds air bag module. Stack 3 more tires on top of first

tire. Connect ends of 20-foot wires to terminals of a 12-volt battery.

5) After air bag module deploys, let it cool off and allow

dust to settle for at least 30 minutes before approaching. Tightly

seal deployed air bag module in a strong vinyl bag and dispose of air

bag as you would any other part.

DEPLOYED AIR BAG CLEAN-UP

WARNING: Vehicle interior will contain sodium hydroxide powder, a

by-product of air bag deployment. Since this powder can

irritate skin, eyes, nose and throat, wear safety glasses,

rubber gloves and long-sleeved shirt during clean-up.

1) Avoid breathing powder from air bag deployment. Begin

clean-up by putting tape over air bag exhaust vent to prevent

additional powder from escaping into vehicle interior. Use a vacuum

cleaner to remove any residual powder from A/C-heater outlets and

vehicle interior.

2) Turn blower motor to low for a few minutes and exit

vehicle. Turn blower motor off. Vacuum any other powder expelled from

plenum. Vacuum interior a second time to recover all powder. Avoid

kneeling or sitting on unclean areas. Wrap deployed air bag in heavy

vinyl plastic and dispose of it as you would any other part.

POST-COLLISION INSPECTION

When a vehicle has been involved in a collision, certain

components of the passive restraint system must be inspected or

replaced. See PASSIVE RESTRAINT SYSTEM INSPECTION article in the

GENERAL INFORMATION section for post-collision inspection information.

REMOVAL & INSTALLATION

WARNING: Follow air bag service precautions to prevent accidental air

bag deployment and personal injury. See SERVICE PRECAUTIONS.

Replace faulty SRS components; DO NOT repair or disassemble.

Handle all SRS components carefully.

DRIVER-SIDE AIR BAG MODULE & CLOCKSPRING

Removal

1) Before proceeding, see SERVICE PRECAUTIONS. Reactivate

SRS. See DISABLING & ACTIVATING AIR BAG SYSTEM.

2) Ensure front wheels are in straight-ahead position. Remove

lower covers from air bag module. Remove air bag module mounting nut