Mitsubishi Montero (2004+). Manual — part 503

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-83

STEP 3. Check the following harness wire.

• The wire between data link connector D-118 (terminal 7)

and TPMS receiver connector G-28 (terminal 1)

Q: Is the harness wire damaged?

YES : Repair or replace it. And then go to Step 4.
NO : Replace the TPMS receiver (Refer to

P.31-96

) and

execute "Tire Pressure Sensor ID Registration" on
scan tool MB991958 "Special Function" (Refer to

P.31-89

). And then go to Step 4.

STEP 4. Retest the system.

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 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Retest the system.
Q: Does the scan tool communicate with the TPMS

system?
YES : The procedure is complete.
NO : Repeat this procedure from Step 1.

AC204170

CONNECTOR : D-118

AN

HARNESS
SIDE

D-118(B)

D-118(B)

1

9

2

10

3

11

4

12

5

13

6

14

7

15

8

16

AC307592

G-28

AF

G-28

10

5

6

7

9 8

3

4

2 1

HARNESS CONNECTOR:
COMPONENT SIDE

CONNECTOR: G-28

AC306409AF

MB991911

MB991824

MB991827

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-84

TPMS SERVICE DATA LIST

M1311003300029

The following items can be read by the scan tool from the TPMS receiver input data.

MUT-III SCAN TOOL
DISPLAY

ITEM NO.

CHECK ITEM

DISPLAY
TEXT OR UNIT

Ignition Signal

01

Ignition ON

IG ON/IG OFF

VSS

04

Vehicle speed signal data

Km/h or mph

Air Pressure, Tire 1

05

Air pressure data 1

kPa or in. Hg

Air Pressure, Tire 2

06

Air pressure data 2

kPa or in. Hg

Air Pressure, Tire 3

07

Air pressure data 3

kPa or in. Hg

Air Pressure, Tire 4

08

Air pressure data 4

kPa or in. Hg

Air Pressure, Tire 5

09

Air pressure data 5

kPa or in. Hg

Pressure reducing threshold
level

35

Tire pressure warning threshold level set for
pressure reduction

kPa or in. Hg

Pressure rising threshold level 36

Tire pressure warning threshold level set for
pressure rising

kPa or in. Hg

Warning History 1 (Day)

45

Warning history 1 (date)

D (D: day)

Warning History 1 (Time)

46

Warning history 1 (time)

H (H: hour)

Warning History 1 (Tire)

81

Warning history 1 (tire)

−

Warning History 1 (Detail)

82

Warning history 1 (details of warning)

−

Warning History 2 (Day)

47

Warning history 2 (date)

D (D: day)

Warning History 2 (Time)

48

Warning history 2 (time)

H (H: hour)

Warning History 2 (Tire)

83

Warning history 2 (tire)

−

Warning History 2 (Detail)

84

Warning history 2 (details of warning)

−

Warning History 3 (Day)

49

Warning history 3 (date)

D (D: day)

Warning History 3 (Time)

50

Warning history 3 (time)

H (H: hour)

Warning History 3 (Tire)

85

Warning history 3 (tire)

−

Warning History 3 (Detail)

86

Warning history 3 (details of warning)

−

No.of Air Pressure low
Warning

55

Number of past tire pressure warnings

TIME

No.of VSS&EEPROM fail
Warning

56

Number of past vehicle speed signal input
and EEPROM abnormality warnings

TIME

Number of reception fail
Warning

57

Number of past reception failure warnings

TIME

No.of XMTR Low Voltage
Warning

58

Number of past TPMS transmitter low
battery voltage abnormality warnings

TIME

Number of Warning History

59

Number of records currently stored

TIME

Number of ID Registration

60

Number of past ID registrations

TIME

Number of ID (registered)

61

Number of IDs currently registered

−

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-85

TPMS ACTUATOR TEST

M1311006200021

The scan tool activates the following actuator for testing.

TPMS SPECIAL FUNCTION DATA LIST

M1311006300028

When the TPMS "Special Function" is executed, the TPMS receiver uses the data below.
TPMS SPECIAL FUNCTION DATA LIST

MUT-III SCAN TOOL DISPLAY NO. ITEM

PARTS TO BE ACTIVATED

TPMS Indicator Lamp Check

60

Compulsory illumination of the TPMS
warning light

TPMS warning light

FUNCTION

MUT-III SCAN TOOL
DISPLAY

ITEM

DISPLAY TEXT
OR UNIT

Tire Pressure
Sensor ID
Registration

5tires PRES SNSR ID
Registration (NORMAL
SPARE TIRE)

5 tires pressure sensor ID registration

−

−

ID registration flag (tire 1)

OK/

−

−

ID registration flag (tire 2)

OK/

−

−

ID registration flag (tire 3)

OK/

−

−

ID registration flag (tire 4)

OK/

−

−

ID registration flag (tire 5)

OK/

−

Tire Pressure
Sensor ID Check

1st

Tire pressure
sensor ID

Not checked

FFFFF

Checked

e.g. 4B9B45

2nd

Tire pressure
sensor ID

Not checked

FFFFF

Checked

e.g. 4B9B46

3rd

Tire pressure
sensor ID

Not checked

FFFFF

Checked

e.g. 4B9B47

4th

Tire pressure
sensor ID

Not checked

FFFFF

Checked

e.g. 4B9B48

5th

Tire pressure
sensor ID

Not checked

FFFFF

Checked

e.g. 4B9B49

Tire Pressure
Sensor Check

Tire pressure sensor ID Tire pressure

sensor ID

Not checked

FFFFF

Checked

e.g. 4B9B45

Tire Pressure

Tire pressure data

kPa or in. Hg

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-86

CHECK AT TPMS RECEIVER

M1311003400026

.

TERMINAL VOLTAGE CHECK CHART
Measure the voltages between terminal 6 (ground terminal)
and each respective terminal.

.

TPMS RECEIVER GROUND CHECK
1. Turn the ignition switch to the "LOCK" (OFF) position and

disconnect the TPMS receiver connector.

2. Check the resistance and continuity between terminal 6 of

the harness connector and body ground. The resistance
should measure less than 2 ohms.

4

9

6 7 8

1 2 3

10

5

AC206994 AD

TPMS RECEIVER CONNECTOR

G-28

CONNECTOR
TERMINAL NO

SIGNAL

CHECKING REQUIREMENT

NORMAL
CONDITION

1

Scan tool

When the scan tool is connected

Serial
communication
with Scan tool

When the scan tool is not connected

Approximately 0 V

3

Vehicle speed sensor

• Ignition switch: "ON"

• Move the vehicle slowly forward

0

⇔ 5 V (changes

repeatedly)

5

TPMS receiver power
supply

Always

Battery positive
voltage

7

TPMS warning light
signal

Ignition
switch: "ON"

When the light is switched off

Approximately 10 V

When the light is illuminated

Approximately 0 V

10

Ignition signal

Ignition switch: "ON"

Battery positive
voltage

10

5

6

7

9 8

3

4

2 1

AC206995 AD

HARNESS CONNECTOR

G-28