Mitsubishi L200. Manual — part 806

DIAGNOSIS CODE PROCEDURES

LOCAL INTERCONNECT NETWORK (LIN)

54B-35

STEP 5. Check the wiring harness between E-06
rear power window sub switch (RH) connector
terminal No. 4 and the power window relay

AC502334AD

Harness side

Connector: E-06

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-24

AH

Prior to the wiring harness inspection, check interme-

DIAGNOSIS CODE PROCEDURES

LOCAL INTERCONNECT NETWORK (LIN)

54B-36

diate connectors C-16, C-33, D-24 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.

DIAGNOSIS CODE PROCEDURES

LOCAL INTERCONNECT NETWORK (LIN)

54B-37

STEP 6. Check the wiring harness between C-219
ETACS-ECU connector terminal No.54 and E-06
rear power window sub switch (RH) connector
terminal No.6.

AC509934

Connector: C-219 <LHD>

AD

C-219 (GR)

Harness side

Junction block

AC502334AD

Harness side

Connector: E-06

NOTE:

AC903853

Connector: C-16 <LHD>

AL

AC903868

Connector: C-16 <RHD>

AQ

AC901129

Connector: D-24

AH

Prior to the wiring harness inspection, check interme-
diate connectors C-16 and D-24, and repair if neces-
sary.

• 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-38

YES :

Replace the rear power window sub switch

(RH).

NO :

A poor connection, open circuit or other
intermittent malfunction is present in the LIN
bus lines between the rear power window
sub switch (RH) and the ETACS-ECU
(Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points

−

How to Cope with Intermittent Malfunctions
).

Code No.U1512: Rear panel power window-ECU time-out

Rear Panel Power Window LIN Communication Circuit

LIN
INTERFACE

ECU

REAR PANEL
POWER WINDOW-ECU

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

FUSE

2

RELAY
BOX

TROUBLE JUDGEMENT
The ETACS-ECU receives signal from the rear panel
power window-ECU. If signal cannot be received at
all, diagnosis code No.U1512 will be set.

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 panel power window-ECU
and the ETACS-ECU, the power supply system of
the rear panel power window-ECU, or the rear
panel power window-ECU itself may be defective.

The M.U.T.-III shows a diagnosis code status as

stored.

• If diagnosis code No.U1512 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 panel power window-
ECU and the ETACS-ECU, and the power supply
system of the rear panel power window-ECU. For
diagnosis procedures, refer to GROUP 00, How
to Use Troubleshooting/Inspection Service Points
− How to Treat Past Trouble .

PROBABLE CAUSES

• Malfunction of the rear panel power window-ECU

• Damaged harness wires and connectors