Mitsubishi Montero (2004+). Manual - part 495

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-51

STEP 2. After the tire inflation pressure is adjusted and the 
TPMS transmitter sends inflation pressure information on 
it, check the TPMS warning light.

(1) Wait until the tires cool down, and adjust all the tire inflation 

pressures (including spare tire) to the value specified on the 
tire pressure label.

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.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.
(4) Execute "Tire Pressure Sensor Check" on scan tool 

MB991958 "Special Function" (Refer to 

P.31-91

). 

(5) Check the TPMS warning light.
Q: Is the TPMS warning light turned off?

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

STEP 3. Check the tire inflation pressure again.

Use a tire pressure gauge to check that all the tire inflation 
pressures (including spare tire) meet the value specified on the 
tire pressure label.
Q: Are all the tires (including spare tire) in good condition?

YES : Go to Step 4.
NO :  Replace the valve grommet or valve core, or repair 

the damaged tire. Replace the tire if necessary. And 
then return to Step 2.

AC306409AF

MB991911

MB991824

MB991827

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-52

STEP 4. Check the TPMS warning light.

Turn the ignition switch to the "ON" position. The TPMS warn-
ing light should illuminate for three seconds, and then go out 
momentarily.
NOTE: If the TPMS warning light goes out momentarily, the 
TPMS warning light circuit is correct. However, as DTC 23, 27, 
32, 36 or 41 (TPMS transmitter abnormality 

−

 Tire air pressure 

low) has been set, the TPMS warning light illuminated.
Q: Turn the ignition switch to the "ON" position. Does the 

TPMS warning light illuminate for three seconds, and 
then go out momentarily?
YES : Go to Step 5.
NO :  Go to Step 6.

STEP 5. Using scan tool MB991958, read the diagnostic 
trouble code.

Use scan tool MB991958 to check whether DTC 23, 27, 32, 36 
or 41 (TPMS transmitter abnormality 

− Tire air pressure low) is 

set.
Q: Is DTC 23, 27, 32, 36 or 41 set?

YES : Carry out troubleshooting for DTC 23/27/32/36/41 

(TPMS transmitter abnormality 

− Tire air pressure 

low) (Refer to 

P.31-46

).

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 9.

AC205999

H

C

AT

TEMP

SRS

P
R
N
D

5
4
3
2
1

x1000r/min

2

3

4

5

6

7

8

1

0

AC307585

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-53

STEP 6. Check the following connectors.

• Combination meter connector D-04

• Intermediate connector D-112

• TPMS receiver connector G-28

Check the connectors for loose, corroded or damaged termi-
nals, or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 7.
NO :  Repair it. And then go to Step 9.

AC204170

CONNECTOR: D-04

EL

D-04

COMBINATION METER 
CONNECTOR

D-04 (GR)

AC204171 AL

CONNECTOR : D-112

2 3

27

32

28

33

16

15

4 5

19

18

29

17

34

7 8

35

22

21

9 10

30

36

31

37

25

24

23

6

20

1

14

26

11

13

12

38

AC307592 AE

CONNECTOR : G-28

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS

TSB Revision

WHEEL AND TIRE

31-54

STEP 7. Check the following harness wire.

• The wire between combination meter connector D-04 (ter-

minal 41) and TPMS receiver connector G-28 (terminal 7)

Q: Is the harness wire damaged?

YES : Repair or replace it. And then go to Step 9.
NO :  Go to Step 8.

STEP 8. Check the combination meter.

Check that the combination meter warning lights and indicators 
other than TPMS warning light illuminate normally.
Q: Are there any faults on the combination meter?

YES : Replace the meter assembly (Refer to 

P.54A-78

). 

And then go to Step 9.

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 9.

STEP 9. Retest the system.
Q: Turn the ignition switch to the "ON" position. Does the 

TPMS warning light illuminate for three seconds, and 
then go out?
YES : The procedure is complete.
NO :  Repeat the troubleshooting from Step 1.

AC204170

CONNECTOR : D-04

AD

D-04(GR)

HARNESS 
SIDE

D-04(GR)

31

32

41 40

33

34

36

37

35

43

46 45 44

39

42

38

47

AC307592

G-28

AF

G-28

10

5

6

7

9 8

3

4

2 1

HARNESS CONNECTOR:
COMPONENT SIDE

CONNECTOR: G-28