Mitsubishi Evolution X. Manual — part 979

COLUMN SWITCH

TSB Revision

CHASSIS ELECTRICAL

54A-277

STEP 1. Using scan tool MB991958, Check whether the
diagnostic trouble code is reset.
Check again if the DTC is set to the ETACS-ECU.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect

scan tool

P.54A-274

".

(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Turn the ignition switch from "LOCK" (OFF) position to "ON"

position.

(5) Check if the DTC B2350 or B2351 is set.
(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

DTC B2351 is set. : Go to Step 2.
DTC B2350 is set. : Go to Step 3.
No DTC is set. : The trouble can be an intermittent

malfunction (GROUP 00

− How to Cope with

Intermittent Malfunction

P.00-15

).

STEP 2. Using scan tool MB991958, Check whether the
diagnostic trouble code is reset.
Check again if the DTC is set to the ETACS-ECU.
(1) Replace the wiper/washer switch.
(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Turn the ignition switch from "LOCK" (OFF) position to "ON"

position.

(5) Check if DTC is set.
(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Go to Step 3.
NO : The procedure is complete.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

COLUMN SWITCH

TSB Revision

CHASSIS ELECTRICAL

54A-278

STEP 3. Using scan tool MB991958, Check whether the
diagnostic trouble code is reset.
Check again if the DTC is set to the ETACS-ECU.
(1) Replace the lighting switch.
(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Turn the ignition switch from "LOCK" (OFF) position to "ON"

position.

(5) Check if DTC is set.
(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Replace the ETACS-ECU.
NO : The procedure is complete.

REMOVAL AND INSTALLATION

M1543100700266

CAUTION

• To remove the driver air bag module, refer to GROUP 52B − Service Precautions

P.52B-25

and

Driver’s Air Bag Module and Clock Spring

P.52B-386

.

• When the steering wheel sensor is replaced, always carry out calibration to make ASC-ECU learn

the neutral point. (Refer to GROUP 35C

− On-vehicle Service-Steering Wheel Sensor Calibration

P.35C-267

.)

Pre-removal operation
• Removal of steering column lower cover, steering column

upper cover (Refer to GROUP37

− Steering column shaft

assembly

P.37-26

.)

Post-installation operation
• Installation of steering column lower cover, steering col-

umn upper cover (Refer to GROUP37

− Steering column

shaft assembly

P.37-26

.)

AC610328

1

2

3

AB

4

2.5 ± 0.5 N·m
23 ± 4 in-lb

Removal Steps

1.

Wiper/washer switch

2.

Lighting switch (integrated
with the column ECU)

•

Steering wheel assembly
(Refer to GROUP 52B
−Driver’s Air Bag Module(s)

and Clock Spring

P.52B-386

.)

•

Paddle shift assembly
<vehicles with paddle shift>
(Refer to GROUP 52B

−

Driver’s Air Bag Module(s)
and Clock Spring

P.52B-386

)

•

Clock spring (Refer to
GROUP 52B

−Driver’s Air

Bag Module(s) and Clock
Spring

P.52B-386

.)

3.

Column switch body

4.

Steering wheel sensor
(Refer to GROUP 35C

−

Steering wheel sensor

P.35C-279

.)

Removal Steps

COLUMN SWITCH

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CHASSIS ELECTRICAL

54A-279

INSPECTION

WIPER/WASHER SWITCH CONTINUITY CHECK

M1543101700076

<VEHICLES WITHOUT LIGHTING CONTROL SENSOR>

<VEHICLES WITH LIGHTING CONTROL SENSOR>

Switch position

Tester
connection

Specified
condition

OFF

−

Open circuit

Windshield intermittent wiper
interval adjusting knob

6

− 3

Operating the
adjusting knob
changes the
resistance.

Windshield washer switch

6

− 7

Continuity exists
(2

Ω or less)

Windshield wiper
switch

Hi

6

− 8

Continuity exists
(2

Ω or less)

Lo

6

− 9

Continuity exists
(2

Ω or less)

Int

6

− 10

Continuity exists
(2

Ω or less)

Mist

6

− 11

Continuity exists
(2

Ω or less)

Switch position

Tester
connection

Specified
condition

OFF

−

Open circuit

Windshield rain sensitive
wiper function adjusting
knob

6

− 3

Operating the
adjusting knob
changes the
resistance.

Windshield washer switch

6

− 7

Continuity exists
(2

Ω or less)

Windshield wiper
switch

Hi

6

− 8

Continuity exists
(2

Ω or less)

Lo

6

− 9

Continuity exists
(2

Ω or less)

Auto

6

− 10

Continuity exists
(2

Ω or less)

Mist

6

− 11

Continuity exists
(2

Ω or less)

AC609144

1

6

8

11

10

9

7

5

4

3

2

AC

<Vehicles without lighting control sensor>

AC609144

AC612670AB

<Vehicles with lighting control sensor>

COLUMN SWITCH

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CHASSIS ELECTRICAL

54A-280

COLUMN SWITCH (SWITCH BODY PART)
CONTINUITY CHECK

M1543100800058

1. Remove the lighting switch and wiper/washer switch.
2. Check that the continuity is present for the same terminal

numbers of the column switch body connectors that remain
on the steering column.

Column switch body

Terminal
number

Normal
condition

Lighting switch side
connector
Wiper/washer switch side
connector

3

− 3

6

− 6

7

− 7

8

− 8

9

− 9

10

− 10

11

− 11

Continuity
exists (2
ohms or less)

AC502901AG

1

6

8

11

10

9

7

5

4

3

2

1

6

8

11

10

9

7

5

4

3

2

Lighting
switch side

Wiper/washer
switch side