Mitsubishi Outlander GS45X. Manual — part 1253
TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-5
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. Ensure that the ignition switch is at the "LOCK" (OFF)
position.
2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824
and the personal computer.
4. Connect special tool MB991910 to special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON"
position.
NOTE: When special tool MB991824 is energized, special
tool MB991824 indicator light will be illuminated in a green
color.
7. Start the M.U.T.-III system on the personal computer.
NOTE: Disconnecting scan tool MB991958 is the reverse of the
connecting sequence, making sure that the ignition switch is at
the "LOCK" (OFF) position.
HOW TO READ AND ERASE DIAGNOSTIC
TROUBLE CODES
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicles 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)
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.
NOTE: If the battery voltage is low, diagnostic trouble codes will
not be set. Check the battery if scan tool MB991958 does not
display.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" under "Model Year". Check that
"Vehicle Information" contents are correct.
5. Select "ETACS" from "System List", and then press "OK"
button.
NOTE: If "Loading Option Setup" list is shown, click appro-
priate box.
6. Select "Diagnostic Trouble Code" to read the DTC.
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.
ZC501967
AC404789
AC702802
MB991824
MB991827
MB991910
Data link
connector
AB
TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-6
DIAGNOSTIC TROUBLE CODE CHART
M1545100200580
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC U0169: Sunroof LIN timeout <Vehicles with sunroof>
DTC No.
Diagnostic item
Reference
page
U0169
Sunroof LIN timeout <Vehicles with sunroof>
U0215
P/W SW (DR) LIN timeout
U0231
Lighting control sensor LIN timeout <Vehicles with auto light function>
U1109
Column SW LIN timeout
U1006
Theft-alarm siren LIN timeout <Vehicles with theft-alarm sensor>
U1007
Theft-alarm sensor LIN timeout <Vehicles with theft-alarm sensor>
U150B
Column SW checksum error
U150C
P/W SW (DR) checksum error
U1511
Sun roof checksum error <Vehicles with sunroof>
U1512
Lighting control sensor checksum error <Vehicles with auto light function>
U1514
Bit error (LIN)
U1515
No-Bus activity error (LIN)
Sunroof Motor Assembly LIN Communication Circuit
ETACS-
ECU
INTERFACE
CIRCUIT
LIN DRIVE
CIRCUIT
INPUT CIRCUIT
SUNROOF
MOTOR
ASSEMBLY
FUSE
15
TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-7
CAUTION
Before replacing the ECU, ensure that the com-
munication circuit is normal.
.
TROUBLE JUDGMENT
The ETACS-ECU receives signal from the sunroof
motor assembly (sunroof-ECU). If signal cannot be
received at all, DTC U0169 will be set.
.
TECHNICAL DESCRIPTION (COMMENT)
Current trouble
• Connector(s) or wiring harness in the LIN bus
lines between the sunroof motor assembly and
the ETACS-ECU, the power supply system of the
sunroof motor assembly, or the sunroof motor
assembly itself may be defective.
Past trouble
• If DTC U0169 is stored as a past trouble, carry
out diagnosis with particular emphasis on wiring
and connector(s) in the LIN bus line between the
sunroof motor assembly and the ETACS-ECU,
and the power supply system of the sunroof
motor assembly. For diagnosis procedures, refer
to GROUP 00, How to Use Troubleshoot-
ing/Inspection Service Points
− How to Treat Past
Trouble
.
TROUBLESHOOTING HINTS
• The sunroof motor assembly may be defective.
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector.
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicles 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)
STEP 1. Check ETACS-ECU connector C-316 and sunroof
motor assembly connector D-04 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are ETACS-ECU connector C-316 and sunroof motor
assembly connector D-04 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Go to
Step 7.
ACA02655 AN
Connector: C-316
AC702816AN
Connector: D-04
D-04 (GR)
TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-8
STEP 2. Check the ground circuit to the sunroof motor
assembly. Measure the resistance at sunroof motor
assembly connectors D-04.
(1) Disconnect sunroof motor assembly connector D-04 and
measure the resistance available at the wiring harness side
of the connector.
(2) Measure the resistance value between sunroof motor
assembly connector D-04 terminal 2 and ground.
• The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 4.
NO : Go to Step 3.
STEP 3. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 2) and the ground.
• Check the ground wires for open circuit.
Q: Is the wiring harness between sunroof motor assembly
connector D-04 (terminal 2) and the ground in good
condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary.
STEP 4. Check the battery power supply circuit to the
sunroof motor assembly. Measure the voltage at sunroof
motor assembly connector D-04.
(1) Disconnect sunroof motor assembly connector D-04
measure the voltage available at the wiring harness side of
the connector.
(2) Measure the voltage between sunroof motor assembly
connector D-04 terminal 6 and ground.
• The voltage should measure approximately 12 volts
(battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Go to Step 6.
NO : Go to Step 5.
AC608255 DC
Connector D-04
(Harness side)
AC702831CY
Connector D-04
(Harness side)
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