Mitsubishi Lancer (4A9 engine). Manual - part 191

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-426

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

SPECIAL TOOLS

M1544000600663

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-427

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 

Communicatio
n 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 and service data 
check.

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

DO NOT USE

BA

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-428

TROUBLESHOOTING

STANDARD FLOW OF DIAGNOSTIC 
TROUBLESHOOTING

M1544004800614

Refer to GROUP 00 

− Contents of troubleshooting .

TROUBLE SYMPTOM CHART

M1544004901346

MB992006

Extra fine probe

Continuity check and voltage 
measurement at harness wire or 
connector

Tool

Number

Name

Use

MB992006

Inspection 
Procedure No.

Trouble symptom

Reference 
page

1

Steering wheel audio remote control switch does not 
function

<Vehicles with radio 
and CD player>
<Vehicles with 
MMCS>

2

Steering wheel audio remote control switch illumination does not come on.

STEERING WHEEL AUDIO REMOTE CONTROL SWITCH

CHASSIS ELECTRICAL

54A-429

SYMPTOM PROCEDURES

Inspection Procedure 1: Steering wheel audio remote control switch does not function. <Vehicles 
with radio and CD player>

Steering Wheel Audio Remote Control Switch Circuit

RADIO AND CD PLAYER

CLOCK 
SPRING

STEERING 
WHEEL 
AUDIO 
REMOTE 
CONTROL 
SWITCH

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