Mitsubishi Montero (2004+). Manual — part 502
TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS
TSB Revision
WHEEL AND TIRE
31-79
INSPECTION PROCEDURE 5: Communication between the Scan Tool and the TPMS is not Possible.
IGNITION
SWITCH (IG1)
FUSIBLE
LINK
1
FUSIBLE
LINK
2
JOINT
CONNECTOR (7)
JOINT
CONNECTOR
(5)
JUNCTION
BLOCK
JUNCTION
BLOCK
DATA LINK
CONNECTOR
RELAY
BOX
POWER
SUPPLY
TPMS
RECEIVER
FRONT SIDE
Data Link Connector Circuit
TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS
TSB Revision
WHEEL AND TIRE
31-80
.
CIRCUIT OPERATION
The diagnostic output is made from the TPMS
receiver (terminal 1) to the diagnostic output terminal
(terminal 7) of the data link connector.
.
TECHNICAL DESCRIPTION (COMMENT)
When communication with the scan tool is not possi-
ble, the cause is probably an open circuit in the diag-
nostic output circuit or an open circuit in the TPMS
receiver power/ground circuit.
.
TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CASE:)
• Damaged harness wire or connector
• Malfunction of the TPMS receiver
.
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness B
.
AC204170
CONNECTOR: D-29
D-29
EK
AC204171
CONNECTOR : D-112
AU
AC204170
CONNECTOR : D-118
BW
D-118(B)
AC307592
G-28
CONNECTOR: G-28
AD
THIRD SEAT
BELT (RH)
TPMS RECEIVER
TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS
TSB Revision
WHEEL AND TIRE
31-81
STEP 1. Check the TPMS warning light.
Check whether the TPMS warning light illuminates for three
seconds after the ignition switch is turned to the "ON" position.
Q: Does the TPMS warning light illuminate for three
seconds?
YES : Check that the TPMS warning light illuminates for
three seconds and then goes out. And then go to Step
2.
NO : Go to TPMS Inspection Procedure No.3 "The TPMS
Warning Light does not Illuminate as a Bulb Check for
Three Seconds when the Ignition Switch is Turned to
the "ON" Position" (Refer to
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
31-82
STEP 2. Check the following connectors.
• Joint connector D-29
• Intermediate connector D-112
• Data link connector D-118
• 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 3.
NO : Repair it. And then go to Step 4.
AC204170
CONNECTOR : D-29
CR
9 10
8
6 7
31 32
30
29
18 19 20 21
5
4
2
1
3
27
26
24
23
25
12 13 14 15 16 17
28
11
22
33
HARNESS
SIDE
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
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 AE
CONNECTOR : G-28
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