Mitsubishi L200. Manual — part 804
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-27
COMMENT ON TROUBLE SYMPTOM
The M.U.T.-III shows a diagnosis code status as
active.
• Connector(s) or wiring harness in the LIN bus
lines between the rear power window sub switch
(LH) and the ETACS-ECU, the power supply sys-
tem of the rear power window sub switch (LH), or
the rear power window sub switch (LH) itself may
be defective.
The M.U.T.-III shows a diagnosis code status as
stored.
• If diagnosis code No.U1510 is stored as a past
trouble, carry out diagnosis with particular
emphasis on wiring and connector(s) in the LIN
bus line between the rear power window sub
switch (LH) and the ETACS-ECU, and the power
supply system of the rear power window sub
switch (LH). For diagnosis procedures, refer to
GROUP 00, How to Use Troubleshooting/Inspec-
tion Service Points
− How to Treat Past Trouble .
PROBABLE CAUSES
• Malfunction of the rear power window sub switch
(LH)
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Connector check: C-219 ETACS-ECU
connector, E-13 rear power window sub switch
(LH) connector
AC509934
Connector: C-219 <LHD>
AD
C-219 (GR)
Harness side
Junction block
AC502333AD
Connector: E-13
Harness side
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
STEP 2. Resistance measurement at the E-13 rear
power window sub switch (LH) connector
AC502333AD
Connector: E-13
Harness side
(1) Disconnect the connector, and measure at the
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-28
wiring harness side.
AC310506KP
Connector E-13
(Harness side)
(2) Measure the resistance between the E-13 rear
power window sub switch (LH) connector
terminal No. 1 and the body earth.
OK: Continuity exists (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Go to Step 3.
STEP 3. Check the wiring harness between E-13
rear power window sub switch (LH) connector
terminal No. 1 to body earth
AC502333AD
Connector: E-13
Harness side
Check the earth wires for open circuit.
NOTE:
AC901129
Connector: D-14
AG
Prior to the wiring harness inspection, check interme-
diate connector D-14, 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-13 rear
power window sub switch (LH) connector.
AC502333AD
Connector: E-13
Harness side
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Ignition switch: ON position
AC310507
Connector E-13
(Harness side)
MG
(3) Measure the voltage between the E-13 rear
power window sub switch (LH) 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-29
STEP 5. Check the wiring harness between E-13
rear power window sub switch (LH) connector
terminal No. 4 and the power window relay
AC502333AD
Connector: E-13
Harness side
Check the power supply line for open circuit and
short circuit.
NOTE:
AC903853
Connector: C-16 <LHD>
AL
AC903868
Connector: C-16 <RHD>
AQ
AC903856
Connectors: C-32, C-33 <LHD>
AJ
C-33
C-32
C-33
C-32 (GR)
AC903865
Connectors: C-32, C-33 <RHD>
AE
C-33
C-32 (GR)
C-32
C-33
AC901129
Connector: D-14
AG
Prior to the wiring harness inspection, check interme-
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-30
diate connectors C-16, C-33, D-14 and joint connec-
tor C-32, 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.
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