Mitsubishi 380. Manual — part 827

FRONT IMPACT SENSORS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-232

REMOVAL SERVICE POINT

<<A>>NEGATIVE (-) BATTERY CABLE DISCON-
NECTION

DANGER

Wait at least 60 seconds after disconnecting the bat-
tery cable before doing any further work (Refer to

P.52B-16

WARNING

Battery posts, terminals and related accessories con-
tain 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(s) deployment.

INSTALLATION SERVICE POINTS

>>A<<PRE-INSTALLATION INSPECTION

when installing the new front impact sensor, refer to "INSPEC-
TION."

>>B<<FRONT IMPACT SENSOR INSTALLATION

WARNING

The SRS may not activate properly if a front impact
sensor is not installed properly, which could result in
serious injury or death to the vehicle's driver.

1. Securely connect the connector.

2. Position the front impact sensor facing toward the front of

the vehicle as indicated by the arrow on the label, and install
it securely.

ACX00583

INSULATING TAPE

BATTERY

BATTERY CABLE (–)

FRONT IMPACT SENSORS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-233

>>C<<POST-INSTALLATION INSPECTION

1. Reconnect the negative (-) battery cable.

2. Turn the ignition key to "ON" position.
3. Does the "SRS" warning lamp illuminate for approximately

seven seconds, and go out?

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

If not, consult page

P.52B-20

INSPECTION

M1524001600277

WARNING

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

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

P.52B-21

1. Check the front impact sensor and bracket for dents, cracks

or deformation.

2. Check the connector for damage, and terminals for defor-

mation.

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

support pannel.

35DB113A

SRS
WARNING
LAMP

SRS CONTROL UNIT (SRS-ECU)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-234

SRS CONTROL UNIT (SRS-ECU)

M1524002100413

REMOVAL AND INSTALLATION

WARNING

•

Never attempt to disassemble or repair the SRS-ECU. If faulty, replace it.

•

Do not drop or subject the SRS-ECU to impact or vibration. If denting, cracking, deforma-
tion, or rust are discovered in the SRS-ECU, replace it with a new SRS-ECU.

•

After deployment of an air bag, replace the SRS-ECU with a new one.

•

Never use an ohmmeter on or near the SRS-ECU, and use only the special test equipment
described here

P.52B-224

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

52DB025A

7.5 ± 2.5 N·m
67 ± 22 in-lb

REMOVAL STEPS

<<A>>

NEGATIVE (

−) BATTERY CABLE