Mitsubishi Lancer Evolution IX. Manual — part 112

SPECIAL TOOLS

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-11

SPECIAL TOOLS

M1549000300775

Tool

Number

Name

Use

MB991502

M.U.T.-II sub
assembly

Check the SWS (The M.U.T.-II
displays diagnosis codes and
input signals)

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

measurement
adapter

F: M.U.T.-III trigger

harness

Check the SWS (The M.U.T.-III
displays diagnosis codes and
input signals)

CAUTION

M.U.T.-III main harness B
(MB991911) should be used.
M.U.T.-III main harness A
should not be used for this
vehicle.

B991502

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

DO NOT USE

SPECIAL TOOLS

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-12

MB991529

Diagnosis code check
harness

Input signal check by using a
voltmeter

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

MB992006

Extra fine probe

Continuity check and voltage
measurement at harness wire or
connector

Tool

Number

Name

Use

MB991529

MB991223

DO NOT USE

MB992006

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-13

TROUBLESHOOTING

PRIOR TO TROUBLESHOOTING

M1549014700497

Before carrying out troubleshooting, check the fol-
lowing two items.

• Make sure that the ETACS-ECU, the junction

block (J/B), the front-ECU and the engine com-
partment relay box are connected securely.

• Check that the system fuses and fusible links are

not burned out.

STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING

M1549000500683

Refer to GROUP 00

− How to Use Troubleshoot-

ing/Inspection Service Points

P.00-5

DIAGNOSTIC FUNCTION

M1549028900148

HOW TO READ DIAGNOSIS CODE

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

− How to Use Troubleshooting/Inspec-

tion Service Points

P.00-5

NOTE: Connect the M.U.T.-II/III to the 16-pin diagno-
sis connector (black).
NOTE: A diagnosis code can not be read when the
ETACS-ECU is defective or the power supply voltage
has risen. In this case, refer to inspection procedure
A-1 "Communication with the M.U.T.-II/III is not pos-
sible

P.54B-38

HOW TO CHECK INPUT SIGNALS

1. Use the M.U.T.-II/III or a voltmeter to check input

signals (Refer to GROUP 00

− How to Use Trou-

bleshooting/Inspection Service Points

P.00-5

2. The input signals below can be checked by con-

necting the M.U.T.-II/III or a voltmeter to the diag-
nosis connector.

NOTE: If a fault is found at the input signal check,

refer to trouble symptom chart

P.54B-36

SWITCHES WHICH ARE APPLICABLE TO INPUT SIGNAL CHECK, AND THEIR CHECK
CONDITIONS

Input signal

Requirements for sounding buzzer

Ignition switch (ACC)

When turned from the LOCK (OFF) position to the
ACC position

Ignition switch (IG1)

When turned from ACC to ON

Key reminder switch

When the inserted ignition key is pulled out

Hazard warning lamp switch

When the switch is turned from off to on

Rear fog lamp switch
Driver's door switch

When the driver's door is opened

All of the door switches

A door is opened when all the doors are closed

Driver's door lock actuator

When the driver's key cylinder or inside lock knob is
unlocked or locked

Door lock key cylinder switch

Turn the key to the lock or unlock position

Vehicle speed signal

When the vehicle speed has reached 10 km/h or
more

DIAGNOSIS CODE CHART

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-14

DIAGNOSIS CODE CHART

M1549000700331

Column switch

Tail lamp switch

When the lighting switch is moved from the
headlamp position to the tail lamp position.

Headlamp switch

When the lighting switch is moved from the tail lamp
position to the headlamp position.

Dimmer switch

When the switch is turned from off to on

Passing lamp switch
Turn-signal lamp switch (LH)
Turn-signal lamp switch (RH)
Wind shield mist wiper switch
Windshield intermittent wiper
switch
Windshield low-speed wiper
switch
Windshield high-speed wiper
switch
Windshield intermittent wiper
volume

When the windshield intermittent wiper volume is
rotated from "FAST" to "SLOW" (a pulse is sent
around the volume middle position)

Windshield washer switch

When the switch is turned from off to on

Keyless entry
transmitter

Switches

When the switch is turned from off to on

Interior lamp loaded signal

When a load is applied through multi-purpose fuse
No.18

Input signal

Requirements for sounding buzzer

Code No.

Diagnosis Details