Mitsubishi Galant 9G. Manual - part 1543

IGNITION SWITCH

TSB Revision

CHASSIS ELECTRICAL

54A-44

TRANSPONDER LOCK CHECK

M1543024100238

Required Special Tools:

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A (Vehicles with CAN 

communication system)

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to "LOCK" (OFF) position before connect-
ing or disconnecting scan tool MB991958.
Follow the procedure below to judge if the ignition key can be 
overwritten (i.e. the ignition key is correct) or not.
1. Connect the scan tool MB991958 to the data link connector.
2. Turn the ignition switch to "ON" position.
3. Select "Interactive Diagnosis" from the start-up screen.

4. Select "System select." 

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

System select

System select

Special function

CAN bus diagnosis

Function Select Menu

Menu

Menu

AC209666

Maintenance

AC

IGNITION SWITCH

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CHASSIS ELECTRICAL

54A-45

5. Choose "IMMOBILIZER" from the "POWER TRAIN" tab.

6. Select "Data List."

7. The multi-center display shows whether the ignition key, 

which has been inserted in the switch, can be rewritten and 
how many ignition keys have ever been registered.

IGNITION SWITCH

REMOVAL AND INSTALLATION

M1543002100456

WARNING

•

Before removing the steering wheel, air bag module assembly and clock spring refer to 
GROUP  52B, Service Precautions (

P.52B-26

) and Air Bag Module and Clock  Spring 

(

P.52B-369

).

•

When removing and installing the steering wheel, do not let it bump against the air bag 
module.

TP LOCK 
CHECK

IGNITION KEY:

JUDGMENT OF 
IGNITION KEY

UNLOCK

Can be overwritten Correct

LOCK

Can not be 
overwritten

Incorrect

MFI

ELC-A/T

IMMOBILIZER

IMMOBILIZER

SS4II

CRUISE CNTRL

CHASSIS

BODY

System Select Menu

POWER TRAIN

POWER TRAIN

AC209667

AC

Check Chart For

 Problem Sy

Data List

Special Function

Self-diagnosis

Voltmeter

Simulated Vehicle 

Speed Out

Drive Recorder

Resistor

POWERTRAIN

IMMOBILIZER

IMMOBILIZER

IMMOBILIZER

IMMOBILIZER

AC210932

AB

AC209776

POWERTRAIN

IMMOBILIZER

Data List Reference T

Data List Reference Table

able

Info.

Info. No.

No.

01

REGD.KEY

3

TP LOCK CHECK

UNLOCK

02

Name

Name

Value

alue

Graph

Graph

Data List

Data List

Data List

AB

IGNITION SWITCH

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CHASSIS ELECTRICAL

54A-46

AC308088

SECTION A – A

CLAW

2

1

2

3

4

7

2

5

6

A

A

2.5 ± 0.5 N·m 
23 ± 4 in-lb

2.0 ± 1.0 N·m 
18 ± 9 in-lb

AB

5.0 ± 1.0 N·m 
44 ± 9 in-lb

8

A

B

B

COLUMN SWITCH

CLAW

CLAW

NOTE    

A

: CLAW POSITIONS

SECTION A – A

SECTION B – B

IGNITION SWITCH

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CHASSIS ELECTRICAL

54A-47

REMOVAL SERVICE POINTS

.

<<A>> STEERING COLUMN COVER REMOVAL

1. Rotate the steering wheel with a slightly from side-to-side to 

access and remove the mounting screws.

.

IGNITION SWITCH  REMOVAL 
STEPS

1.

STEERING WHEEL ASSEMBLY 
(REFER TO GROUP 37, 
STEERING WHEEL 

P.37-26

.)

<<A>>

2.

STEERING COLUMN COVER 
(REFER TO GROUP 52A, 
INSTRUMENT PANEL ASSEMBLY 

P.52A-3

.)

3.

CLOCK SPRING AND COLUMN 
SWITCH ASSEMBLY (REFER  TO 
GROUP 52B, AIR BAG 
MODULE(S) AND CLOCK SPRING 

P.52B-369

.)

4.

IGNITION SWITCH

5.

KEY RING ANTENNA

<<B>>

6. STEERING LOCK CYLINDER
7. KEY REMINDER SWITCH

IMMOBILIZER-ECU REMOVAL 
STEPS

•

HOOD LOCK RELEASE HANDLE 
(REFER TO GROUP 42, HOOD 

P.42-8

.)

•

INSTRUMEN LOWER PANEL 
(REFER TO GROUP 52A, 
INSTRUMENT PANEL ASSEMBLY 

P.52A-3

.)

8. IMMOBILIZER-ECU

IGNITION SWITCH REMOVAL 
STEPS (Continued)

AC307459 AB