Mitsubishi Outlander GS45X. Manual — part 1417
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-163
STEP 5. Check the harness wires between SRS-ECU
connector C-27 (terminal No.55 and 58) and the
passenger’s seat belt buckle switch connector D-32
(terminal No.1 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 passenger’s seat belt buckle switch
connector D-32.
CAUTION
Do not insert a probe into the terminal from D-32 harness
side connector front side directly, as the connector contact
pressure may be weakened.
(4) Check for continuity between the following terminals. It
should be less than 2 ohms <No.B1B56>.
• SRS-ECU connector C-27 (terminal No.55) and the pas-
senger’s seat belt buckle switch connector D-32 (termi-
nal No.1)
• SRS-ECU connector C-27 (terminal No.58) and the pas-
senger’s seat belt buckle switch connector D-32 (termi-
nal No.2)
Q: Is the check result normal?
YES : go to Step 6.
NO : Repair harness wires between SRS-ECU connector
C-27 and the passenger’s seat belt buckle switch
connector D-32.
STEP 6. The passenger’s seat belt buckle switch check.
Refer to GROUP 52A, Front Seat Belt
Q: Is the check result normal?
YES : Go to Step 7.
NO : Replace the passenger’s seat belt buckle switch.
AC507645
A
AC
Lock lever
AC608812
D-32 Harness side
connector
(rear view)
HS
C-27 Harness side
connector (front view)
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-164
STEP 7. 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 B1B54, B1B55 or B1B56 set?
YES : Replace the SRS-ECU (Refer to
).
NO : The procedure is complete.
DTC B1B70: Malfunction of G-sensor inside Front Impact Sensor (LH)
DTC B1B71: Malfunction of G-sensor inside Front Impact Sensor (RH)
CAUTION
If DTC B1B70 or B1B71 is set in the SRS-ECU,
always diagnose the CAN main bus line.
.
DTC SET CONDITIONS
These DTCs are set if the following conditions are
detected from the analog G-sensor inside the front
impact sensor output:
• Analog G-sensor is not operating.
• Analog G-sensor characteristics are abnormal.
• Analog G-sensor output is abnormal.
.
TROUBLESHOOTING HINTS
Malfunction of front impact sensor (LH) (for DTC
B1B70) and front impact sensor (RH) (for DTC
B1B71)
DIAGNOSIS
Required Special Tool:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
ZC501967
AC404789
AC701411AB
MB991824
MB991827
MB991910
Data link
connector
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-165
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. Check the front impact sensor. (Using scan tool
MB991958, read the diagnostic trouble code.)
(1) Disconnect the negative battery terminal.
(2) A front impact sensor is checked in the following way.
• Replace the front impact sensor (LH) {In case of code
B1B70 (Regardless of "Active" or "Stored" faults)} with
new part.
• Replace the front impact sensor (RH) {In case of code
B1B71 (Regardless of "Active" or "Stored" faults)} with
new part.
(3) Connect the negative battery terminal.
(4) After erasing the diagnostic trouble code memory, check the
diagnostic trouble code again.
Q: Is either DTC B1B70 or B1B71 set?
YES : Go to Step 3.
NO : The procedure is complete.
ZC501967
AC404789
AC701411AB
MB991824
MB991827
MB991910
Data link
connector
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-166
STEP 3. Check the SRS-ECU (Using scan tool MB991958,
read the diagnostic trouble code.)
(1) Disconnect the negative battery terminal.
(2) Replace the SRS-ECU with a new one. (Refer to
(3) Connect the negative battery terminal.
(4) Check the diagnostic trouble code again.
Q: Is either DTC B1B70 or B1B71 set?
YES : Return to Step 1.
NO : The procedure is complete.
DTC B1B72: Malfunction of G-sensor Inside Side Impact Sensor (Front) (LH)
DTC B1B75: Malfunction of G-sensor Inside Side Impact Sensor (Front) (RH)
CAUTION
If the diagnostic trouble code B1B72 or B1B75 is
set in the SRS-ECU, always diagnose the CAN
main bus line.
.
DTC SET CONDITIONS
These DTCs are set if the following conditions are
detected from the analog G-sensor inside the side
impact sensor output:
• Analog G-sensor is not operating.
• Analog G-sensor characteristics are abnormal.
• Analog G-sensor output is abnormal.
.
TROUBLESHOOTING HINTS
Malfunction of side impact sensor (front) (LH) (for
DTC B1B72) and side impact sensor (front) (RH) (for
DTC B1B75)
DIAGNOSTIC PROCEDURE
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст