Mitsubishi Outlander GS45X. Manual — part 1462
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-343
STEP 1. Using scan tool MB991958, diagnose the CAN bus
line
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect the
."
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?
YES : Go to Step 2.
NO : Repair the CAN bus line. (Refer to GROUP 54C,
).
STEP 2. Using scan tool MB991958, read the ETACS-ECU
diagnostic trouble code
Check if DTC Nos. U0331, B1761, B222C, B2206, or B2215 is
set to the ETACS-ECU.
Q: Is the DTC set?
YES : Diagnose the ETACS-ECU (Refer to GROUP 54A,
).
NO : Go to Step 3.
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the SRS-ECU.
(1) Erase the DTC.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(3) Check if DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace the SRS-ECU.
NO : There is an intermittent malfunction such as poor
engaged connector(s) or open circuit (Refer to
GROUP 00, How to use Troubleshooting/inspection
Service Points
ZC501967
AC404789
AC701411AB
MB991824
MB991827
MB991910
Data link
connector
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-344
DIAGNOSTIC TROUBLE CODE CHART
<Occupant classification-ECU>
M1524003302449
CAUTION
During diagnosis, a DTC code associated with
another system may be set when the ignition
switch is turned on with connector(s) discon-
nected. After completing the repair, confirm all
systems for DTC code(s). If DTC code(s) are set,
erase them all.
Inspect according to the inspection chart that is
appropriate for the DTC.
Diagnostic trouble
Code No.
Inspection item
Reference page
B1B78
Passenger seat weight sensor (front: LH) performance
B1B79
Passenger seat weight sensor (ground side) short-circuited
(front: LH)
B1B7A
Passenger seat weight sensor (power supply side)
short-circuited or open (front: LH)
B1B7D
Passenger seat weight sensor (front: RH) performance
B1B7E
Passenger seat weight sensor (ground side) short-circuited
(front: RH)
B1B7F
Passenger seat weight sensor (power supply side)
short-circuited or open (front: RH)
B1B82
Passenger seat weight sensor (rear: LH) performance
B1B83
Passenger seat weight sensor (ground side) short-circuited
(rear: LH)
B1B84
Passenger seat weight sensor (power supply side)
short-circuited or open (rear: LH)
B1B87
Passenger seat weight sensor (rear: RH) performance
B1B88
Passenger seat weight sensor (ground side) short-circuited
(rear: RH)
B1B89
Passenger seat weight sensor (power supply side)
short-circuited or open (rear: RH)
B1B8C
Driver seat slide sensor circuit performance
B1B8D
Driver seat slide sensor open circuit
B1B8E
Driver seat slide sensor (power supply side) short circuit
B1B91
Driver seat slide sensor configuration mismatch
B1BA7
Occupant classification system verification required
B1BA8
Occupant classification-ECU out of calibration/Not
calibrated
B1BBA
Passenger seat weight sensor power supply circuit
B1BBC
Occupant classification system negative system weight
B1BBD
Occupant classification -ECU current configuration table
unprogrammed
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-345
B1C23
Passenger seat weight sensor (front: LH) configuration
mismatch
B1C24
Passenger seat weight sensor (front: RH) configuration
mismatch
B1C25
Passenger seat weight sensor (rear: LH) configuration
mismatch
B1C26
Passenger seat weight sensor (rear: RH) configuration
mismatch
B1CB2
Occupant classification-ECU parameter table incompatible
B210D
Battery voltage low
B210E
Battery voltage high
B2206
Chassis number does not match
B2212
Occupant classification-ECU internal failure
B2250
Occupant classification-ECU not programmed/flash
required
B2262
Occupant classification-ECU electrostatic discharge event
detected
U0020
CAN-B Bus off performance
U0021
CAN-B Bus(H1) circuit open
U0022
CAN-B Bus(H1) shorted to circuit ground
U0023
CAN-B Bus(H1) shorted to circuit power supply
U0024
CAN-B Bus(L0) circuit open
U0025
CAN-B Bus(L0) shorted to circuit ground
U0026
CAN-B Bus(L0) shorted to circuit power supply
U0141
ETACS CAN timeout
U0151
SRS-ECU CAN timeout
U0155
Combination meter CAN timeout
U0164
A/C-ECU CAN timeout
U0168
KOS-ECU or WCM CAN timeout
U0184
Audio CAN timeout
U0195
Satellite radio tuner CAN timeout
U0245
Audio visual navigation unit CAN timeout
U1419
The signal from a weight sensor (front: LH) is unusual
U141A
The signal from a weight sensor (front: RH) is unusual
U141B
The signal from a weight sensor (rear: LH) is unusual
U141C
The signal from a weight sensor (rear: RH) is unusual
U1423
The signal from a weight sensor is unusual
Diagnostic trouble
Code No.
Inspection item
Reference page
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-346
DIAGNOSTIC TROUBLE CODE PROCEDURES <OCCUPANT
CLASSIFICATION-ECU>
DTC B1B78: Passenger Seat Weight Sensor (front: LH) Performance
DTC B1B7D: Passenger Seat Weight Sensor (front: RH) Performance
DTC B1B82: Passenger Seat Weight Sensor (rear: LH) Performance
DTC B1B87: Passenger Seat Weight Sensor (rear: RH) Performance
AC803887
OCCUPANT
CLASSIFICATION-
ECU
FRONT SEAT
ASSEMBLY (RH)
WEIGHT SENSOR
(FRONT: LH)
WEIGHT SENSOR
(FRONT: RH)
WEIGHT SENSOR
(REAR: LH)
WEIGHT SENSOR
(REAR: RH)
AB
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