Mitsubishi Lancer (4A9 engine). Manual — part 211

DEFOGGER

CHASSIS ELECTRICAL

54A-506

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.
Diagnosis code, service data and
actuator test check.

MB991223

a. MB991219
b. MB991220
c. MB991221
d. MB991222

Wiring harness set

a. Check harness
b. LED harness
c. LED harness

adapter

d. Probe

Continuity check and voltage
measurement at wiring harness 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

DO NOT USE

BA

DEFOGGER

CHASSIS ELECTRICAL

54A-507

TROUBLESHOOTING

STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING

M1540500700038

Refer to GROUP 00

− Contents of Troubleshooting .

TROUBLE SYMPTOM CHART

M1540500800035

MB992006

Extra fine probe

Continuity check and voltage
measurement at wiring harness or
connector

Tool

Number

Name

Use

MB992006

Trouble symptom

Reference page

The rear window defogger does not work.

DEFOGGER

CHASSIS ELECTRICAL

54A-508

SYMPTOM PROCEDURES

The rear window defogger does not work.

DEFOGGER

CHASSIS ELECTRICAL

54A-509

Rear Window Defogger Circuit

REAR WINDOW
DEFOGGER RELAY

REAR WINDOW
DEFOGGER

ETACS-ECU

REAR
WINDOW
DEFOGGER
SWITCH

INTERFACE CIRCUIT

POWER SOURCE

CPU

HEATER
CONTROL
PANEL

OR
A/C
CONTROL
PANEL

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

RELAY BOX

PASSENGER
COMPARTMENT

FUSIBLE
LINK

34

44

FUSIBLE
LINK

37

42

IGNITION
SWITCH (IG1)

IG1
RELAY

NOTE

:PETROL
:DIESEL
:LHD
:RHD
:VEHICLES WITHOUT A/C
:VEHICLES WITH A/C