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6 Modifications to the basic vehicle
6.13 Others
MITSUBISHI FUSO body/equipment mounting directives for FE Issue date: 20. 10. 2020
! Only print out complete sections from the current version
6.13 Others
6.13.1 SRS air bag
• Precautions for body building and modifications
(a) Modification of a front portion of the vehicle or
mounting of a built body on the front surface of
the cab may result in the SRS air bag not
working properly. If such a modification is made
or body building is performed, explain the
precaution to the purchaser of the vehicle and
alter the SRS air bag so as to demount.
For queries about the alteration procedure to
demount the air bag and any special types of
body building other than those given below,
contact the department responsible. É 2.1
• Modification of the front bumper, frame or
cab at the front portion of the vehicle
• Mounting of a grille guard or winch
• Mounting of a snowplow
• Body building of a front-stowing, and not
hook-stowing, cab back crane (type of crane
traveling with a hook suspended at the front
of the cab)
(b) Never disassemble or modify the steering wheel
(including the pad), airbag modules (driver’s
seat and front passenger seat), airbag ECU,
sub-G sensor, ELR of the seatbelts fitted with
pretensioners (driver’s seat and front
passenger seat) or the airbag harnesses.
(c) Do not install electrical parts or equipment
related to body-building at a location that is on
and higher than the steering wheel.
(d) The airbag ECU is installed on a bracket
alongside the brake pedal on the cabin floor (in
the case where a front passenger seat airbag is
provided, a sub-sensor is also installed on the
floor at the rear of the washer tank on the front
passenger seat side), so do not modify or
reinforce the airbag ECU mounting bracket.
Also, do not apply a strong impact to the
bracket by kicking or striking it, for example.
• Precautions during electric welding
(a) Turn OFF the starter switch and disconnect the
negative battery cable. Then, leave the vehicle
to stand for 1 minute or more.
This step is performed to let electricity stored in
the backup capacitor disposed inside the ECU
of the SRS air bag discharged.
Wrap tape around the negative battery cable
terminal for proper insulation. (Be sure to
perform this step particularly for work related to
electrical systems and cab.)
(b) Make an ground connection of the welding
machine near the welding portion.
(c) After the welding operation, restore the battery
cable to the original position and turn ON the
starter switch. At this time, make sure that
does not appear on the multi-display.
If the multi-display shows , never fail to
contact an authorized MITSUBISHI FUSO
dealer.
If you carry out welding work in the vicinity of the
airbag, you are likely to cause this restraint system to
become defective. Never carry out welding in the
vicinity of the airbag.
If you ignore this warning, the airbag is likely to deploy
or fail to function correctly.
• Precautions during body building work
(a) The SRS air bag system parts are mounted
around the steering wheel and seat belt
retractor. Do not tap the areas around the SRS
air bag system parts or otherwise apply impact
to them.
(b) Do not remove any SRS air bag system parts.
a Risk of injuary
Observe the following precautions when carrying
out body/modification work on vehicles equipped
with SRS airbags and seat belts with emergency
tensioning retractors.
Otherwise, the airbag may not operate properly or it
may be triggered unexpectedly during the work.
(SRS: Abbreviation for Supplemental Restraint
System, a restraint system which supplements the
seat belts)
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