Mitsubishi L200. Manual — part 809
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-47
DIAGNOSIS PROCEDURE
STEP 1. Check the following connectors.
AC509934
Connector: C-219 <LHD>
AD
C-219 (GR)
Harness side
Junction block
AC509945AB
Harness side
Connector: C-302 <LHD>
10
5
6
7
9 8
3
4
2 1
AC509946AB
Harness side
Connector: C-302 <RHD>
10
5
6
7
9 8
3
4
2 1
AC901129
Connector: D-11
AN
Harness side
AC903877AB
Connector: D-38 <LHD>
Harness side
AC903879AB
Connector: D-38 <RHD>
Harness side
AC509952
Connector: E-03
AT
Harness side
AC502334AD
Harness side
Connector: E-06
AC502333AD
Connector: E-13
Harness side
AC509954
Connector: E-26
AS
Harness side
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-48
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-49
Check the following connectors:
• C-219 ETACS-ECU connector
• C-302 column switch connector
• D-38 lighting control sensor connector
• E-03 power window main switch connector
• E-26 front power window sub switch connector
• E-13 rear power window sub switch (LH) connec-
tor
• E-06 rear power window sub switch (RH) connec-
tor
• D-11 rear panel power window-ECU connector
Q: Are all the connectors in good condition?
YES :
Go to Step 2.
NO :
Repair the defective connector.
STEP 2. Measure the voltage at the LIN bus lines.
Check the LIN bus lines for short to power supply.
(1) Disconnect all the ECU connectors which are
connected to the LIN bus lines.
(2) Turn the ignition switch from "LOCK" (OFF) to
"ON" position.
(3) Measure the voltage between C-302 column
switch connector terminal No.3 and earth.
• The voltmeter needle does not swing.
NOTE: If the LIN bus lines are short to power
supply, the voltmeter indicates a constant value.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the wiring harness.
STEP 3. Measure the resistance at the LIN bus
lines.
Check the LIN bus lines for short to earth.
(1) Disconnect all the ECU connectors which are
connected to the LIN bus lines.
(2) Measure the resistance value between C-302
column switch connector terminal No.3 and earth.
• No continuity (1 kΩ or more)
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the wiring harness.
STEP 4. Check the column switch.
AC509945AB
Harness side
Connector: C-302 <LHD>
10
5
6
7
9 8
3
4
2 1
AC509946AB
Harness side
Connector: C-302 <RHD>
10
5
6
7
9 8
3
4
2 1
Disconnect C-302 column switch connector, and
recheck whether diagnosis code No. U1570 is set.
(1) Connect all the relevant ECUs, and disconnect
C-302 column switch connector only.
(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF) to
"ON" position.
(4) Check whether diagnosis code No. U1570 is set.
NOTE: If diagnosis code No. U1570 is not set,
diagnosis code No. U1500 is set because the col-
umn switch is disconnected. This is normal.
(5) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Is diagnosis code No. U1570 set?
YES :
Reconnect the column switch connector,
and go to Step 5.
NO :
Replace the lighting switch.
DIAGNOSIS CODE PROCEDURES
LOCAL INTERCONNECT NETWORK (LIN)
54B-50
STEP 5. Check the lighting control sensor.
AC903877AB
Connector: D-38 <LHD>
Harness side
AC903879AB
Connector: D-38 <RHD>
Harness side
Disconnect D-38 lighting control sensor connector,
and recheck whether diagnosis code No. U1570 is
set.
(1) Connect all the relevant ECUs, and disconnect
D-38 lighting control sensor connector only.
(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF) to
"ON" position.
(4) Check whether diagnosis code No. U1570 is set.
NOTE: If diagnosis code No. U1570 is not set,
diagnosis code No. U1504 is set because the
lighting control sensor is disconnected. This is
normal.
(5) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Is diagnosis code No. U1570 set?
YES :
Reconnect the lighting control sensor
connector, and go to Step 6.
NO :
Replace the lighting control sensor.
STEP 6. Check the power window main switch.
AC509952
Connector: E-03
AT
Harness side
Disconnect E-03 power window main switch connec-
tor, and recheck whether diagnosis code No. U1570
is set.
(1) Connect all the relevant ECUs, and disconnect E-
03 power window main switch connector only.
(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF) to
"ON" position.
(4) Check whether diagnosis code No. U1570 is set.
NOTE: If diagnosis code No. U1570 is not set,
diagnosis code No. U1508 is set because the
power window main switch is disconnected. This
is normal.
(5) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Is diagnosis code No. U1570 set?
YES :
Reconnect the power window main switch
connector, and go to Step 7.
NO :
Replace the power window main switch.
STEP 7. Check the front power window sub
switch.
AC509954
Connector: E-26
AS
Harness side
Disconnect E-26 front power window sub switch con-
nector, and recheck whether diagnosis code No.
U1570 is set.
(1) Connect all the relevant ECUs, and disconnect E-
26 front power window sub switch connector only.
(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF) to
"ON" position.
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