Tire Monitor System - TPMS Sensor Service Information

No: TSB-10-31-001REV

DATE: February, 2010

MODEL: See Below

SUBJECT
TPMS SENSOR SERVICE

PURPOSE

This bulletin provides part number, registration and servicing information for tire pressure monitoring system (TPMS) sensors.

AFFECTED VEHICLES
2008-on Eclipse, Eclipse Spyder,
2004-on Endeavor
2006-on Galant
2008-on Lancer, Lancer Evolution X
2009-on Lancer Sportback
2004-06 Montero
2007-on Outlander

DESCRIPTION

Replacement TPMS sensors will be activated when registered to the vehicle. Additionally, if tires are switched between vehicles, sensors must be reregistered for BOTH vehicles or DTCs will be set. The MUT-III is required to register TPMS sensors.

Refer to TPMS sensor replacement procedures described in the applicable service manual. For Galant, Eclipse/Eclipse Spyder, Endeavor, Montero, use Group 31 "Tires and Wheels." For all other models, the information is in Group 42B "Keyless Operation System" or Group 42C "Wireless Control Module" depending on vehicle equipment.








TPMS SENSOR REPLACEMENT OR SERVICE





NOTE
1. TPMS sensor seals MUST be replaced every 5 years or whenever the tire is replaced or the sensor is disturbed.

2. Valve cores used in TPMS sensors are made of a special material to prevent corrosion and false readings. Use only the valve core listed in CAPS for the vehicle.

When deflating tires for removal or sensor replacement, use the following procedure.

DO NOT REMOVE THE VALVE CORE FROM THE VALVE STEM.

CAUTION
Be careful to not break the TPMS sensor when dismounting and remounting tires.

1. Loosen (do not remove) the TPMS sensor retaining nut.

2. Push on the valve stem to unseat the TPMS sensor seal to relieve air pressure.

3. When completely deflated, rotate the tire so that the tire valve stem is in the 6 o'clock position.

4. Remove the sensor retaining nut and allow the sensor to fall into the deflated tire.

5. Carefully break both beads of the tire.

6. Lubricate and remove the outer bead from the wheel.

7. Reach into the tire and remove the sensor.

8. If replacing the tire, complete tire removal.





NOTE
When replacing or servicing TPMS sensors, handle them carefully.

For Outlander and all Lancer models, when installing the TPMS seal and washer, be sure to support the base of the valve stem with your thumb. Applying lateral pressure to an unsupported valve stem can break the antenna base.

IMPORTANTT
ALWAYS replace the TPMS seal when reinstalling a sensor. see Parts Information section later in this TSB or refer to CAPS for part numbers.

Installation is the reverse of removal:

1. If the tire was removed, install the inner tire bead to the wheel.

2. Install the TPMS sensor. Torque the retaining nut as follows:

- Eclipse, Galant and Endeavor: 5.5Nm +/- 0.5 Nm (49 +/- 4 in/lb).

- Outlander and all Lancers: 8.0 +/- 0.5 Nm (71 +/- 4 in/lb).

3. Carefully finish installing the tire. Inflate it to the correct pressure displayed on the "Tire Pressure and Loading Label" located at the driver's door opening.

4. Retorque the TPMS sensor retaining nut to spec (see step #2, above).

Valve Core Replacement

Using a valve core made of different metal than the valve stem can lead to corrosion. Genuine Mitsubishi valve core replacements are available through the spare parts channel. Refer to CAPS for the correct part number for your vehicle.





Be careful when installing a valve core. The aluminum stem is easily broken if overtightened. Torque the valve core to 0.25NM / 2.5 in/lb.





Torque sensing valve core tightening tools are available from several manufactures, including Snap On and KD Tools. Some manufactures offer them calibrated to different settings. When purchasing, make sure you get one that meets the torque spec (0.25NM / 2.5 in/lb).

WARRANTY INFORMATION

This TSB provides information only.