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Acura RL. Manual - part 849

4. Remove the TPMS control unit (B).

5. Install the TPMS control in the reverse order of removal.

6. Connect the HDS, and memorize the pressure sensor IDs (see MEMORIZING THE TIRE

PRESSURE SENSOR ID ). Do not memorize the IDs automatically.

INITIATOR REPLACEMENT

FRONT

1. Make sure the ignition switch is OFF.

2. Raise the front of the vehicle, and support it with safety stands in the proper locations (see LIFT

AND SUPPORT POINTS ).

3. Remove the front wheel.

4. Remove the front inner fender (see FRONT INNER FENDER REPLACEMENT ).

5. Disconnect the initiator connector (A).

Fig. 37: Identifying Initiator With Torque Specifications - Front
Courtesy of AMERICAN HONDA MOTOR CO., INC.

6. Remove the initiator (B) from the bracket.

7. Install the initiator in the reverse order of removal.

REAR

1. Make sure the ignition switch is OFF.

2. Raise the rear of the vehicle, and support it with safety stands in the proper locations (see LIFT AND

SUPPORT POINTS ).

3. Remove the rear wheel.

4. Remove the rear fender cover (see REAR INNER FENDER REPLACEMENT ).

NOTE:

Make sure the initiator mounting bracket is not bent or twisted as this may
affect its communication with the TPMS control unit and the tire pressure
sensor.

2007 Acura RL

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

Friday, June 05, 2009 3:22:24 PM

Page 49

5. Disconnect the initiator connector (A).

Fig. 38: Identifying Initiator With Torque Specifications - Rear
Courtesy of AMERICAN HONDA MOTOR CO., INC.

6. Remove the initiator (B) from the inner side of the wheel well.

7. Install the initiator in the reverse order of removal.

TIRE PRESSURE SENSOR REPLACEMENT

REMOVAL

1. Raise the vehicle, and support it with safety stands in the proper locations (see LIFT AND

SUPPORT POINTS ).

2. Remove the wheel with the faulty sensor.

3. Remove the tire valve cap and the valve core, and let the tire deflate.

4. Remove any balance weights, and then break the bead loose from the wheel with a commercially

available tire changer (A).

NOTE:

Note these items to avoid damaging the tire pressure sensor:



Do the outside of the wheel first.



Position the wheel as shown so the valve stem (B) is 90 degrees
from the bead breaker (C) as shown.



Do not position the bead breaker of the tire changer too close to
the rim.

2007 Acura RL

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

Friday, June 05, 2009 3:22:24 PM

Page 50

5. Position the wheel so the tire machine (A) and tire iron (B) are next to the valve stem (C) and will

move away from it when the machine starts. Then remove the tire from the wheel.

Fig. 40: Identifying Tire Machine And Tire Iron
Courtesy of AMERICAN HONDA MOTOR CO., INC.

6. Remove and discard the valve stem nut (A), then remove the tire pressure sensor and valve stem (B)

from the wheel.

Fig. 39: Identifying Wheel Position Angle
Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE:

Use a new nut and a new valve stem on reassembly.

2007 Acura RL

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

Friday, June 05, 2009 3:22:24 PM

Page 51

Fig. 41: Identifying Valve Stem Nut And Tire Pressure Sensor And Valve Stem
Courtesy of AMERICAN HONDA MOTOR CO., INC.

7. Remove and discard the valve stem (A), and the screw (B) from the tire pressure sensor (C).

Fig. 42: Identifying Valve Stem Grommet And Valve Stem (A), And Screw
Courtesy of AMERICAN HONDA MOTOR CO., INC.

INSTALLATION

Fig. 43: Identifying TPMS Or "PAX SYSTEM" Mark
Courtesy of AMERICAN HONDA MOTOR CO., INC.

1. Assemble the new valve stem (A), new screw (B), and the sensor-transmitter (C).

NOTE:

The valve stem grommet (D) might stay in the wheel; make sure you
remove it.

NOTE:

Use only wheels that have a "TPMS" or "PAX System" mark (A) on them.

NOTE:

Always use a new valve stem and new screw.

2007 Acura RL

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

Friday, June 05, 2009 3:22:25 PM

Page 52

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