Mitsubishi L200. Manual — part 803
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-23
STEP 3. Wiring harness check from E-26 front
power window sub switch connector terminal No.
1 to body earth
AC509954
Connector: E-26
AS
Harness side
Check the earth wires for open circuit.
NOTE:
AC903853
Connector: C-122 <LHD>
AG
AC903865
Connector: C-134 <RHD>
AF
Prior to the wiring harness inspection, check interme-
diate connector C-122 <LHD> or C-134 <RHD>, and
repair if necessary.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
Malfunction ).
NO :
Repair the wiring harness.
STEP 4. Voltage measurement at the E-26 front
power window sub switch connector.
AC509954
Connector: E-26
AS
Harness side
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Ignition switch: ON position
AC310507
Connector E-26
(Harness side)
MF
(3) Measure the voltage between the E-26 front
power window sub switch connector terminal No.
4 and the body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Go to Step 5.
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-24
STEP 5. Wiring harness check between the E-26
front power window sub switch connector
terminal No. 4 and the power window relay
AC509954
Connector: E-26
AS
Harness side
Check the power supply line for open circuit and
short circuit.
NOTE:
AC903856
Connectors: C-32, C-33 <LHD>
AJ
C-33
C-32
C-33
C-32 (GR)
AC903853
Connector: C-122 <LHD>
AG
AC903889
Connectors: C-32, C-33, C-134 <RHD>
AB
C-33
C-32
C-33
C-32 (GR)
C-134
C-134
Prior to the wiring harness inspection, check interme-
diate connectors C-33, C-122 <LHD> or C-134
<RHD> and joint connector C-32, and repair if nec-
essary.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
Malfunction ).
NO :
Repair the wiring harness.
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-25
STEP 6. Check the wiring harness between C-219
ETACS-ECU connector terminal No.54 and E-26
front power window sub switch connector
terminal No.6.
AC509934
Connector: C-219 <LHD>
AD
C-219 (GR)
Harness side
Junction block
AC509954
Connector: E-26
AS
Harness side
NOTE:
AC903856 AI
Connectors: C-137, C-138 <LHD>
C-138 (L)
C-137, C-138
C-137 (L)
AC903853
Connector: C-121 <LHD>
AI
AC903868
Connectors: C-133, C-137, C-138 <RHD>
C-133
AN
C-138 (L)
C-133
C-137, C-138
C-137 (L)
Prior to the wiring harness inspection, check joint
connectors C-137, C-138 and intermediate connec-
tor C-121 <LHD> or C-133 <RHD>, and repair if nec-
essary.
• Check the communication line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
STEP 7. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set to the
ETACS-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF)
position to "ON" position.
(3) On completion, check that the diagnosis code is
reset.
Q: Is the diagnosis code set?
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-26
YES :
Replace the front power window sub switch.
NO :
A poor connection, open circuit or other
intermittent malfunction is present in the LIN
bus lines between the front power window
sub switch and the ETACS-ECU (Refer to
GROUP 00, How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
Code No.U1510: Power window sub switch (RL) time-out
Rear Power Window Sub Switch (LH) LIN Communication Circuit
LIN
INTERFACE
POWER WINDOW
SUB SWITCH
(REAR: LH)
ETACS-
ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple SI : Silver
RELAY
BOX
POWER WINDOW
RELAY
CPU
TROUBLE JUDGEMENT
The ETACS-ECU receives signal from the rear
power window sub switch (LH). If signal cannot be
received at all, diagnosis code No.U1510 will be set.
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