Mitsubishi Outlander GS45X. Manual — part 1481
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-419
STEP 4. Recheck for diagnostic trouble code.
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 set?
YES : Troubleshoot for the relevant DTC.
NO : Go to Step 5
STEP 5. Recheck of the SRS warning light
(1) Connect the negative battery terminal.
(2) Ignition switch: ON
Q: Does the light stay on?
YES : Replace the SRS-ECU (Refer to
).
NO : The procedure is complete.
DATA LIST REFERENCE TABLE
M1524003500414
DATA LIST OUTPUT
.
The following items can be read by the scan tool
from the SRS-ECU input data.
.
The following items can be read by the scan tool from the occupant classification-ECU input data.
Item No.
Check items
Check conditions
Normal conditions
01
SRS warning light
illumination request
• Ignition switch: ON
• After warning lamp pre-check
OFF
• Ignition switch: ON
• During warning lamp
pre-check
ON
02
Pass. SRS light "ON"
request
• Ignition switch: ON
• After warning light pre-check
OFF
• Ignition switch: ON
• During warning light
pre-check
ON
04
Passenger’s seatbelt
switch
• Ignition switch: ON
• After warning light pre-check
• Wear the passenger seatbelt.
Fastened
• Ignition switch: ON
• After warning light pre-check
• Undo the passenger seatbelt.
Unfastened
05
Passenger seat airbag
ignition
• Ignition switch: ON
• After warning light pre-check
• Apply a load to the passenger
seat.
Permission
• Ignition switch: ON
• After warning light pre-check
• Undo a load from a
passenger seat.
Prohibition
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-420
NOTE: *: Radio Frequency Integrated Circuit
ACTUATOR TEST REFERENCE TABLE
M1524003600165
The scan tool activates the following actuators for
testing.
FAIL-SAFE FUNCTION REFERENCE TABLE
M1524003700151
If the SRS-ECU determines that the following parts
are defective, the SRS-ECU operates the SRS warn-
ing light and controls as follows.
• If the seat slide sensor is defective, the SRS-ECU
determines that the seat is in its backward posi-
tion and controls the air bag.
Item No.
Display on scan tool
Check conditions
Normal conditions
01
Passenger weight
Apply a load to the passenger
seat.
−2048 Kg (4515 Ib) to 2048 Kg
(4515 Ib)
02
Dr seat position sensor
current
Slide the seat the back-end to
the front-position.
0 to 1,700 mA
03
Dr seat position sensor
voltage
Slide the seat the back-end to
the front-position.
0 to 5,000 mV
07
Dr seat position sensor
status
Slide the seat the back-end to
the front-position.
Not Frontal Zone/Frontal
Zone/Undetermined/No Dr
STPS/No Pa STPS/Seat
sensor DTC
08
occupant classification
status
Apply a load to the passenger
seat.
Empty/RFIS*/Child/More
5th%/Less 5th%/Undermined
10
Battery voltage
Always
6.5 to 16 V
21
Pa seat weight sensor 1
RR
Apply a load to the passenger
seat.
−2048 Kg (4515 Ib) to 2048 Kg
(4515 Ib)
22
Pa seat weight sensor 1
RR volt
Apply a load to the passenger
seat.
0 to 5,000 mV
23
Pa seat weight sensor 2
RF
Apply a load to the passenger
seat.
−2048 Kg (4515 Ib) to 2048 Kg
(4515 Ib)
24
Pa seat weight sensor 2
RF volt
Apply a load to the passenger
seat.
0 to 5,000 mV
25
Pa seat weight sensor 3
LF
Apply a load to the passenger
seat.
−2048 Kg (4515 Ib) to 2048 Kg
(4515 Ib)
26
Pa seat weight sensor 3
LF volt
Apply a load to the passenger
seat.
0 to 5,000 mV
27
Pa seat weight sensor 4
LR
Apply a load to the passenger
seat.
−2048 Kg (4515 Ib) to 2048 Kg
(4515 Ib)
28
Pa seat weight sensor 4
LR volt
Apply a load to the passenger
seat.
0 to 5,000 mV
30
VIN Information
Always
−
Item No.
Item name
Test item
Driven
component
01
SRS warning light
SRS warning light illumination
ON
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-421
• If the occupant classification sensor or the occu-
pant classification-ECU is defective, the
SRS-ECU determines that the occupant classifi-
cation is class 2 [The occupant classification sen-
sor detects 30 kg (66 pounds) or more.] and
controls the air bag and the passenger’s air bag
OFF indicator light.
ACCURACY CHECK OF OCCUPANT CLASSIFICATION SENSOR
M1524025800093
The scan tool can be used to perform the next func-
tion.
• Zero-Calibration & System Test
SPECIAL TOOLS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-422
SPECIAL TOOLS
M1524000701296
Tool
Tool number and name
Supersession
Application
MB990784
Ornament remover
General service tool
Removal of cover.
MB990803
Steering wheel puller
General service tool
Steering wheel removal
MB991958
a: MB991824
b: MB991827
c: MB991910
d: MB991911
e: MB991914
f: MB991825
g: MB991826
Scan tool (M.U.T.-III sub
assembly)
a: Vehicle communication
interface (V. C. I.)
b: M.U.T.-III USB cable
c: M.U.T.-III main harness
A (Vehicles with CAN
communication
system)
d: M.U.T.-III main
harness B (Vehicles
without CAN
communication
system)
e: M.U.T.-III main
harness C (for Chrysler
models only)
f: M.U.T.-III measurement
adapter
g: M.U.T.-III trigger
harness
MB991824-KIT
NOTE: g: MB991826
M.U.T.-III Trigger
Harness is not
necessary when
pushing V.C.I. ENTER
key.
CAUTION
For vehicles with CAN
communication, use M.U.T.-III
main harness A to send
simulated vehicle speed. If you
connect M.U.T.-III main harness
B instead, the CAN
communication does not
function correctly.
Checking diagnostic trouble code
MB991865
Dummy resistor
SRS air bag and seat belt
pre-tensioner circuit check
MB990784
MB990803AB
MB991910
MB991826
MB991958
MB991911
MB991914
MB991824
MB991827
MB991825
Do not use
a
b
c
d
e
f
g
Do not use
MB991865
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