Mitsubishi Evolution X. Manual — part 1153
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TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-5
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle
Information" is displayed, check the contents.
5. Select "ETACS" from "System List", and press the "OK"
button.
NOTE: When the "Loading Option Setup" list is displayed,
check the applicable item.
6. Select "Diagnostic Trouble Code."
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.
DIAGNOSTIC TROUBLE CODE CHART
M1545100200245
Diagnostic
trouble
code No.
Diagnostic item
Reference
page
U0169
Sunroof LIN timeout <Vehicles with sunroof>
U0215
P/W SW (DR) LIN timeout
U0231
Rain light sensor LIN timeout <Vehicles with auto light function>
U1109
Column SW LIN timeout
U150B
Column SW checksum error
U150C
P/W SW (DR) checksum error
U1511
Sunroof checksum error <Vehicles with sunroof>
U1512
Rain light sensor checksum error <Vehicles with auto light function>
U1514
Bit error (LIN)
U1515
No-Bus activity error (LIN)
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TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-6
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC U0169: Sunroof LIN timeout <Vehicles with sunroof>
CAUTION
Before replacing the ECU, ensure that the communication circuit is normal.
Sunroof Motor Assembly LIN Communication Circuit
ETACS-
ECU
INTERFACE
CIRCUIT
LIN DRIVE
CIRCUIT
INPUT CIRCUIT
SUNROOF
MOTOR
ASSEMBLY
AC708972AI
Connector: C-316
Junction block
AC708954 AE
Connector: D-06
D-06 (GR)
.
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.
.
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.
TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-7
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-06 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-06 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s).
STEP 2. Check the wiring harness between ETACS-ECU
connector C-316 (terminal 1) and sunroof motor assembly
connector D-06 (terminal 7).
Q: Is the wiring harness between ETACS-ECU connector
C-316 (terminal 1) and sunroof motor assembly
connector D-06 (terminal 7) in good condition?
YES : Go to Step 3.
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.
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TROUBLESHOOTING
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LOCAL INTERCONNECT NETWORK (LIN)
54B-8
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
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
Scan Tool (M.U.T.-III)
(2) Erase the DTC.
(3) Turn the ignition switch to the "ON" position.
(4) Check if the DTC is set.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace the sunroof motor assembly.
NO : A poor connection, open circuit or other intermittent
malfunction is present in the LIN bus lines between
the sunroof motor assembly and the ETACS-ECU
(Refer to GROUP 00, How to Cope with Intermittent
Malfunction
).
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