Mitsubishi L200. Manual - part 781

DEFOGGER SWITCH

CHASSIS ELECTRICAL

54A-491

REAR WINDOW DEFOGGER RELAY 
CHECK

M1540500600031

DEFOGGER SWITCH

REMOVAL AND INSTALLATION

M1540600200030

Refer to GROUP 55A, Heater control assembly and 

A/C switch .

AC510090

AC

4

1

2

3

Junction
block

<LHD>

3

1

4

2

Rear window
defogger relay

AC510088

AC

4

1

2

3

Junction
block

<RHD>

3

1

4

2

Rear window
defogger relay

Battery voltage

Tester 
connection

Specified 
condition

Not supplied

3 

− 4

Open 
circuit

• Connect terminal 1 

to the positive 
battery terminal

• Connect terminal 2 

to the negative 
battery terminal

3 

− 4

Continuity 
exists (2 

Ω 

or less)

ETACS

CHASSIS ELECTRICAL

54A-492

ETACS

SPECIAL TOOLS

M1545000600053

ETACS

CHASSIS ELECTRICAL

54A-493

Tool

Number

Name

Use

MB991955

A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826

M.U.T.-III sub-
assembly

A: Vehicle 

Communication 
Interface (V.C.I.)

B: M.U.T.-III USB 

cable

C: M.U.T.-III main 

harness A 
(Vehicles with CAN 
communication 
system)

D: M.U.T.-III main 

harness B 
(Vehicles without 
CAN 
communication 
system)

E: M.U.T.-III measure 

adapter

F: M.U.T.-III trigger 

harness

CAUTION

For vehicles with CAN 
communication, use M.U.T.-III 
main harness A to send 
simulated vehicle speed. If you 
connect M.U.T.-III main harness 
B instead, the CAN 
communication does not 
function correctly.
Checking ETACS-ECU (service 
data and diagnosis codes)

MB991223

A: MB991219
B: MB991220
C: MB991221
D: MB991222

Harness set

A: Check harness
B: LED harness
C: LED harness 

adapter

D: Probe

Continuity check and voltage 
measurement at harness wire or 
connector

A: For checking connector pin 

contact pressure

B: For checking power supply 

circuit

C: For checking power supply 

circuit

D: For connecting a locally 

sourced tester

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

A

B

C

D

E

F

DO NOT USE

MB991223

A

D

C

B

AZ

DO NOT USE

ETACS

CHASSIS ELECTRICAL

54A-494

TROUBLESHOOTING

DIAGNOSIS TROUBLESHOOTING FLOW

M1545000900032

Refer to GROUP 00 

− Contents of Troubleshooting .

DIAGNOSIS FUNCTION

M1545001000043

HOW TO READ DIAGNOSIS CODE

Use the M.U.T.-III to read diagnosis code (Refer to 
GROUP 00 

− Diagnosis Function ).

NOTE: Connect the M.U.T.-III to the 16-pin diagnosis 
connector (black).

HOW TO ERASING DIAGNOSIS CODE

Use the M.U.T.-III to erasing diagnosis code (Refer to 
GROUP 00 

− Diagnosis Function ).

NOTE: Connect the M.U.T.-III to the 16-pin diagnosis 
connector (black).

CHECK OF FREEZE FRAME DATA

To detect fault and store the diagnosis code, the 
ETACS-ECU obtains data before the confirmation of 
the diagnosis code and data when the diagnosis 
code is confirmed, and then stores the current condi-
tion of the ETACS-ECU. By analysing each data from 
M.U.T.-III, the troubleshooting can be performed 
more efficiently. Display items of the freeze frame 
data are as follows.

Display item list

NOTE: 

*

: Total elapsed time can be stored up to 

65534 minutes. The display of M.U.T.-III is fixed to 
65534 minutes after 65534 minutes have elapsed. 
Or, if the battery is disconnected, the total elapsed 
time cannot be measured properly. Thus, 65535 min-
utes (null value) is displayed. Since the value is cal-
culated according to the information from the 
ETACS-ECU, a proper value may not be displayed 
when the ETACS-ECU time-out has ocurred.

DIAGNOSIS CODE CHART

M1545001101065

MB992006

Extra fine probe

Continuity check and voltage 
measurement at harness wire or 
connector

Tool

Number

Name

Use

MB992006

Item No.

Item name

Data item

Unit

2

Ignition cycle

Number of times the ignition switch is turned 
"ON" or "LOCK (OFF)" after the past failure 
transition.

Number of 
counts is 
displayed.

3

Elapsed time

Total elapsed time after a diagnosis code is 
generated

min

*

4

Accumulated minute

Cumulative time for current malfunction of 
diagnosis code

min

Code No.

Diagnostic item

Reference page

B1702

Immobilizer 
system

Reception error of key ID

Refer to 
immobilizer 
system 

P.54A-

30

.

B1703

Key ID inconsistent

B1722

Transponder antenna failure

B1731

Communication error with the engine-ECU

B1761

Chassis No. not recorded

B1766

Transponder registered for other vehicle