Mitsubishi Montero (2004+). Manual — part 489
TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS
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WHEEL AND TIRE
31-27
STEP 5. Check the following harness wire.
• The wire between junction block connector D-220 (terminal
1) and TPMS receiver connector G-28 (terminal 3)
Q: Is the harness wire damaged?
YES : Repair or replace it. And then go to Step 7.
NO : Go to Step 6.
STEP 6. Using scan tool MB991958, check data list item 04:
VSS (Vehicle Speed Signal).
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) Check the following data list.
• Item 04: VSS (Vehicle Speed Signal)
(3) Drive the vehicle at 30 km/h (19 mph) or more, and
compare the value shown on scan tool MB991958 with the
speedometer in the combination meter.
Q: Does the vehicle speed shown on scan tool MB991958
correspond to that on the speedometer?
YES : It can be assumed that this malfunction is intermittent.
Go to Step 7.
NO : Replace the TPMS receiver. And then execute "Tire
Pressure Sensor ID Registration" (Refer to
And then go to Step 7.
AC204173
CONNECTOR : D-220
AI
HARNESS SIDE
1
2
3
7
8
6
5
10
4
9
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
31-28
STEP 7. Recheck for diagnostic trouble code.
Drive the vehicle for a while at 5 km/h (3 mph) or more and then
check the diagnostic trouble code.
Q: Does diagnostic trouble code 14 reset?
YES : Repeat the troubleshooting from Step 1.
NO : The procedure is complete.
DTC 17/43/44/45/46/47: TPMS Abnormality (Transmitter OFF Mode)
.
TPMS DTC SET CONDITION
DTC 17, 43, 44, 45, 46, or 47 is set if the TPMS is in
the "Transmitter OFF Mode." At the same time this
DTC is set, the TPMS warning light flashes.
• Transmitting signal of the TPMS transmitter
should be stopped during transportation to dealer
because it will break Japanese radio wave regu-
lation.
• OFF mode is canceled at dealer. So, output
warning and set DTC 17 (Transmitter OFF Mode,
ALL Tire) during transmitter OFF mode for
reminding cancel of OFF mode.
• When the TPMS receiver receives the signals
from all registered tire pressure sensor, the
TPMS receiver clears the warning.
.
TPMS DTC CLEAR CONDITION
When the TPMS receiver receives the signals from
all registered tire pressure sensor, the TPMS
receiver clears the warning.
.
TROUBLESHOOTING HINT
Execute "Tire Pressure Sensor ID Registration" on
scan tool MB991958 "Special Function."
.
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
.
TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS
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WHEEL AND TIRE
31-29
STEP 1. Execute "Tire Pressure Sensor ID Registration" on
scan tool MB991958 "Special Function." And then recheck
for diagnostic trouble code.
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) Execute "Tire Pressure Sensor ID Registration" (Refer to
(4) Check the diagnostic trouble code.
Q: Does diagnostic trouble code 17/43/44/45/46/47 reset?
YES <DTC17> : Replace the TPMS receiver and then
execute "Tire Pressure Sensor ID Registration" (Refer
to
YES <DTC43/44/45/46/47> : Replace the faulty TPMS
transmitter and then execute "Tire Pressure Sensor
ID Registration" (Refer to
). And then go to
Step 2.
NO : Go to Step 2.
STEP 2. Recheck for diagnostic trouble code.
Q: Does diagnostic trouble code 17/43/44/45/46/47 reset?
YES : Repeat the troubleshooting from Step 1.
NO : The procedure is complete.
DTC 21/25/29/34/38: TPMS Transmitter Abnormality (Transmitter Battery Voltage)
.
TPMS DTC SET CONDITION
DTC 21, 25, 29, 34 or 38 is set if the battery in the
TPMS transmitter is discharged. At the same time
this DTC is set, the TPMS warning light flashes.
.
TROUBLESHOOTING HINT
Replace the TPMS transmitter if its battery is dis-
charged.
NOTE: The battery cannot be removed from the
TPMS transmitter. Nominal service life of the battery
is 10 years or 160,000 km (100,000 miles).
.
AC306409AF
MB991911
MB991824
MB991827
TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS
TSB Revision
WHEEL AND TIRE
31-30
DIAGNOSIS
NOTE: To help determine which TPMS transmitter is defective,
make a note of the tire pressure sensor ID, which the DTC indi-
cates, prior to the troubleshooting.
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
.
STEP 1. Execute "Tire Pressure Sensor Check" on scan
tool MB991958 "Special Function."
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) Execute "Tire Pressure Sensor Check" for all tires (Refer to
Q: Is information on the tire pressure sensor displayed on
scan tool MB991958 after the TPMS transmitter is
activated?
YES : Determine which TPMS transmitter is defective by
using scan tool MB991958, and replace its TPMS
transmitter. Then execute "Tire Pressure Sensor ID
Registration" (Refer to
). And then go to Step
NO : Replace the TPMS transmitter, which is not activated
and then execute "Tire Pressure Sensor ID
Registration" (Refer to
). And then go to Step
2. (If the TPMS transmitter is not activated and no
data is displayed, the TPMS transmitter battery is
completely flat).
STEP 2. Recheck for diagnostic trouble code.
Q: Does diagnostic trouble code 21, 25, 29, 34 or 38 reset?
YES : Repeat the troubleshooting from Step 1.
NO : The procedure is complete.
AC306409AF
MB991911
MB991824
MB991827
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