Mitsubishi Outlander GS45X. Manual — part 1448
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-287
STEP 7. 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 8.
NO : Repair the CAN bus line (Refer to GROUP 54C,
).
STEP 8. Recheck for diagnostic trouble code.
Check again if the DTC is set.
(1) Erase the DTC.
(2) Turn the ignition switch to "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Go to Step 9.
NO : There is an intermittent malfunction such as poor
engaged connector(s) or open circuit (Refer to
GROUP 00, How to Cope with Intermittent
Malfunction
).
ZC501967
AC404789
AC701411AB
MB991824
MB991827
MB991910
Data link
connector
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-288
STEP 9. Check the harness for open circuit between
SRS-ECU connector C-27 (terminal No.61 and 62) and the
ETACS-ECU connector C-313 (terminal No.4 and 2).
(1) Disconnect the negative battery terminal.
(2) While pushing the part "A" indicated in the figure of the
harness side connector, turn the lock lever to the direction
of the arrow to release the lock lever, and disconnect the
C-27 SRS-ECU connector.
(3) Disconnect the ETACS-ECU connector C-313.
(4) Check for continuity between the following terminals. It
should be less than 2 ohms.
<Fuse No.12>
• SRS-ECU connector C-27 (terminal No.62) and the
ETACS-ECU connector C-313 (terminal No.2)
<Fuse No.18>
• SRS-ECU connector C-27 (terminal No.61) and the
ETACS-ECU connector C-313 (terminal No.4)
Q: Does continuity exist?
YES : Go to Step 10.
NO : Repair the harness wire between SRS-ECU
connector C-27 and the ETACS-ECU connector
C-313.
STEP 10. Measure the voltage at the C-27 SRS-ECU
connector.
(1) Disconnect the negative battery terminal.
(2) While pushing the part "A" indicated in the figure of the
harness side connector, turn the lock lever to the direction
of the arrow to release the lock lever, and disconnect the
C-27 SRS-ECU connector.
(3) Connect the negative battery terminal.
(4) Ignition switch: ON
AC507645
A
AC
Lock lever
AC608812DO
C-27 Harness
side connector
(front view)
C-313 Harness side
connector (front view)
AC507645
A
AC
Lock lever
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-289
(5) Take the measurements below at the C-27 harness side
connector.
• Voltage between terminal No. 61/62 and body ground
OK: 9 V or more
Q: Is the measured voltage within the specified range?
YES : Go to Step 11.
NO : Replace the ETACS-ECU (Refer to GROUP 54A,
ETACS-ECU
STEP 11. 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 B210D set?
YES : Replace the SRS-ECU (Refer to
).
NO : There is an intermittent malfunction such as poor
engaged connector(s) or open circuit (Refer to
GROUP 00, How to Cope with Intermittent
Malfunction
).
AC608813
C-27 Harness side
connector (front view)
BQ
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-290
DTC B212C: Open Circuit to IG1 Power Supply (Fuse No.12 Circuit)
DTC B212D: Open Circuit to IG1 Power Supply (Fuse No.18 Circuit)
CAUTION
If DTC B212C (Fuse No.12) or B212D (Fuse No.18)
is set in the SRS-ECU, always diagnose the CAN
main bus lines.
.
CIRCUIT OPERATION
• The SRS-ECU is powered from the fusible link
(34).
IG1
RELAY
AC803172
SRS-ECU
AB
FUSIBLE
LINK
34
IGNITION
SWITCH (IG1)
IG1 Power Supply Circuit
ETACS-ECU
POWER
SUPPLY
AC901076
C-27 (Y)
AC
Connector: C-27
ACA02655AI
Connector: C-313
C-313 (BR)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст