Mitsubishi L200. Manual — part 807
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-39
DIAGNOSIS PROCEDURE
STEP 1. Connector check: C-219 ETACS-ECU
connector, D-11 rear panel power window-ECU
connector
AC509934
Connector: C-219
CA
C-219 (GR)
Harness side
Junction block (Front view)
AC901129
Connector: D-11
AN
Harness side
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
STEP 2. Resistance measurement at the D-11 rear
panel power window-ECU connector
AC901129
Connector: D-11
AN
Harness side
(1) Disconnect the connector, and measure at the
wiring harness side.
AC310506KR
Connector D-11
(Harness side)
(2) Measure the resistance between the D-11 rear
panel power window-ECU connector terminal No.
10 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 D-11
rear panel power window-ECU connector
terminal No. 10 to body earth
AC901129
Connector: D-11
AN
Harness side
Check the earth wires for open circuit.
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-40
STEP 4. Voltage measurement at the D-11 rear
panel power window-ECU connector.
AC901129
Connector: D-11
AN
Harness side
(1) Disconnect the connector, and measure at the
wiring harness side.
AC310507MI
Connector D-11
(Harness side)
(2) Measure the voltage between the D-11 rear panel
power window-ECU connector terminal No. 18
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-41
STEP 5. Check the wiring harness between D-11
rear panel power window-ECU connector
terminal No. 18 and the A-12 relay box connector
terminal No. 1
AC900994
Connector: A-12
AH
Harness side
A-12 (GR)
AC901129
Connector: D-11
AN
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
Connector: C-33 <LHD>
AM
AC903865
Connector: C-33 <RHD>
AH
Prior to the wiring harness inspection, check interme-
diate connectors C-16 and C-33, and repair if neces-
sary.
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-42
STEP 6. Check the wiring harness between C-219
ETACS-ECU connector terminal No.54 and D-11
rear panel power window-ECU connector
terminal No.14.
AC509934
Connector: C-219 <LHD>
AD
C-219 (GR)
Harness side
Junction block
AC901129
Connector: D-11
AN
Harness side
NOTE:
AC903853
Connector: C-16 <LHD>
AL
AC903868
Connector: C-16 <RHD>
AQ
Prior to the wiring harness inspection, check interme-
diate connector C-16, and repair if necessary.
• 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?
YES :
Replace the rear panel power window-ECU.
NO :
A poor connection, open circuit or other
intermittent malfunction is present in the LIN
bus lines between the rear panel power
window-ECU and the ETACS-ECU (Refer to
GROUP 00, How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
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