Mitsubishi L200. Manual - part 714

COLUMN SWITCH

CHASSIS ELECTRICAL

54A-223

MB991955

a. MB991824
b. MB991827
c. MB991910
d. MB991911
e. MB991825
f. MB991826

M.U.T.-III sub-
assembly

a. Vehicle 

Communicati
on Interface 
(V.C.I.)

b. M.U.T.-III 

USB cable

c. M.U.T.-III 

main harness 
A (Vehicles 
with CAN 
communicatio
n system)

d. M.U.T.-III 

main harness 
B (Vehicles 
without CAN 
communicatio
n 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

Tool

Number

Name

Use

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

COLUMN SWITCH

CHASSIS ELECTRICAL

54A-224

TROUBLESHOOTING

DIAGNOSIS TROUBLESHOOTING FLOW

M1543101200037

Refer to GROUP 00 

− Contents of Troubleshooting .

DIAGNOSTIC FUNCTION

M1543101300023

HOW TO READ DIAGNOSIS CODE

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

− Diagnosis Function ).

HOW TO ERASE DIAGNOSIS CODE

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

− Diagnosis Function ).

DIAGNOSIS CODE CHART

M1543100300031

DIAGNOSIS CODE PROCEDURES

Code No.B1763: Column switch abnormality (Lighting switch)

 

Code No.B1764: Column switch abnormality (Wiper/washer switch)

COMMENTS ON TROUBLE SYMPTOM

• If the ETACS-ECU receives the lighting switch fail 

signal, the ETACS-ECU stores the diagnosis 
code No. B1763.

• If the ETACS-ECU receives the wiper/washer 

switch fail signal, the ETACS-ECU stores the 
diagnosis code No. B1764.

PROBABLE CAUSES

• Malfunction of the column switch (lighting switch 

or wiper/washer switch)

• Malfunction of the ETACS-ECU

DIAGNOSIS PROCEDURE

STEP 1. 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 

No. B1763 or No. B1764 is reset.

Q: Is the diagnosis code reset?

The diagnosis code is not set. : 

A poor 

connection, open circuit or other intermittent 
malfunction is present in the LIN bus lines 
between the column switch and the ETACS-
ECU (Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

Diagnosis code No. B1763 is set. : 

Go to Step 3.

Diagnosis code No. B1764 is set. : 

Go to Step 2.

STEP 2. Check whether the diagnosis code is 
reset.
Check again if the diagnosis code is set to the 
ETACS-ECU.
(1) Replace the windshield wiper and washer switch.
(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF) 

position to "ON" position.

(4) On completion, check that the diagnosis code 

No. B1764 is reset.

MB992006

Extra fine probe

Continuity check and voltage 
measurement at harness wire or 
connector

Tool

Number

Name

Use

MB992006

Code No.

Diagnostic item

Reference page

B1763

Column switch abnormality (lighting switch)

P.54A-224

B1764

Column switch abnormality (wiper/washer switch)

COLUMN SWITCH

CHASSIS ELECTRICAL

54A-225

Q: Is the diagnosis code reset?

YES : 

Go to Step 3.

NO : 

The procedure is complete.

STEP 3. Check whether the diagnosis code is 
reset.
Check again if the diagnosis code is set to the 
ETACS-ECU.
(1) Replace the lighting switch (with built-in column-

ECU).

(2) Erase the diagnosis code.
(3) Turn the ignition switch from "LOCK" (OFF) 

position to "ON" position.

(4) On completion, check that the diagnosis code is 

reset.

Q: Is the diagnosis code reset?

YES : 

Return to Step 4.

NO : 

The procedure is complete.

STEP 4. Check whether the diagnosis code is 
reset.
Check if diagnosis code is reset to the ETACS-ECU.

Q: Is the diagnosis code reset?

YES : 

Replace the ETACS-ECU and register the 

ID codes (Refer to 

P.54A-39

).

NO : 

The procedure is complete.

REMOVAL AND INSTALLATION

M1543100700459

LIGHTING SWITCH AND WIPER/WASHER 
SWITCH

AC509692

1

2

1

2

Section A – A

Claw

NOTE
       : Claw position

A

A

AB

4

3

Removal steps 

1.

Steering column upper cover (Refer 
to GROUP 52A, Instrument Panel 
Assembly ).

2.

Steering column lower cover (Refer 
to GROUP 52A, Instrument Panel 
Assembly ).

3.

Windshield wiper and washer 
switch

4.

Lighting switch (with built-in 
column-ECU)

Removal steps (Continued)

COLUMN SWITCH

CHASSIS ELECTRICAL

54A-226

COLUMN SWITCH BODY

CAUTION

• To remove the driver airbag module, refer to GROUP 52B − Service Precautions  and Driver/Front 

Passenger's Air Bag Module and Clock Spring .

• After the installation, perform a calibration for the ASC-ECU to learn the steering wheel sensor 

neutral point. (Refer to GROUP 35C, On-vehicle Service 

− Steering Wheel Sensor Calibration ). 

<Vehicles with ASTC> 

INSPECTION

WINDSHIELD WIPER AND WASHER 
SWITCH CONTINUITY CHECK

M1543101500027

Pre-removal operation
• Check of steering wheel straight-ahead position
• Removal of steering wheel assembly (Refer to GROUP 

52B 

− Air Bag Module(s) and Clock Spring .)

• Removal of steering column lower cover, steering column 

upper cover (Refer to GROUP 52A 

− Instrument Panel 

Assembly .)

• Removal of Clock spring (Refer to GROUP 52B - Driver’s 

Front Passenger's Air Bag Module and Clock Spring ).

Post-installation operation
• Installation of Clock spring (Refer to GROUP 52B - 

Driver’s Front Passenger's Air Bag Module and Clock 

Spring ).

• Installation of steering column lower cover, steering col-

umn upper cover  (Refer to GROUP 52A 

− Instrument 

Panel Assembly .)

• Installation of steering wheel assembly (Refer to GROUP 

52B 

− Air Bag Module(s) and Clock Spring .)

• Check of steering wheel straight-ahead position

AC808093AC

2

1

3

4

2.5 ± 0.5 N·m

Removal Steps 

1.

Windshield wiper and washer 
switch

2.

Lighting switch (with built-in 
column-ECU)

3.

Column switch body

4.

Steering wheel sensor (Refer to 
GROUP 35C - Steering wheel 
sensor ). <Vehicles with ASTC>

AC509590

AC509591

1

6

8

11

10

9

7

5

4

3

2

AB