Lexus

2002 - 2006 SC 430

REGISTER TRANSMITTER ID

  1. Set the inflation pressure of all tires to the normal value.

  2. Connect the LEXUS hand-held tester to DLC3.

  3. Turn the ignition switch ON.

  4. When registering to "Main":

    1. Using the LEXUS hand-held tester, select the registration mode,"Main".

    2. Forcibly transmit the transmitter IDs for all wheels.

HINT:

HINT:  If the operation of step (d) does not complete within 5 min., it will return to the normal operation mode. Also, if the number of the registered ID is less than 4 after 5 min. has elapsed, turning on the ignition switch will make the tire pressure warning light light up for 3 sec., go out for 0.5 sec., then up again and remain ON in the normal operation mode. In this case, do the operation again from the start.

  1. When registering to "2nd":

  1. Using the LEXUS hand-held tester, select the registration mode,"2nd".

  2. Forcibly transmit the transmitter IDs for all wheels.

HINT:

HINT:  If the operation of step e. does not complete within 5 min., it will return to the normal operation mode. Also, if the number of the registered ID is less than 4 after 5 min. has elapsed, turning on the ignition switch will make the tire pressure warning light light up for 3 sec., go out for 0.5 sec., then up again and remain ON in the normal operation mode. In this case, do the operation again from the start.

  1. Using the LEXUS hand-held tester, check that the last 3 bits of the 4 registered ID codes are different each other.

  2. Setting the inflation pressure of all tires to normal value completes the transmitter ID registration.

2004-2006 LS430

INITIALIZING THE TIRE PRESSURE WARNING SYSTEM

NOTE:

lx04ls430_esm_05-403aa.gif

Tire Size

Specified Value

P225/55R17 95H

220 kPa (2.2 kgf/cm2, 32 psi

245/45R18 96W

230 kPa (2.3 kgf/cm2, 33 psi

  1. Check and adjust the tire pressure to the specified value.

  2. With the vehicle stopped, turn the ignition switch to the ON position.

  3. Press and hold the tire pressure warning reset switch until the "Pressure Initial" indicator comes on.

HINT:  If the "Pressure Initial" indicator does not come on, perform the initialization again. (With the ignition switch off, perform the procedures (b) and (c).)

  1. Drive the vehicle at 19 mph (30 km/h) or more to complete the initialization of the skid control ECU.

  2. Check that the indicator is not displayed after driving the vehicle for approximately 60 minutes.

HINT:  If the "Pressure Initial" indicator comes on while the vehicle is being driven, the initialization may have failed. If so, perform the initialization again. (Turn the ignition switch off and retry from step 1-(a).)

  1. After initialization is completed, the skid control ECU monitors the tire pressure by using the wheel speed sensors.

2004-2006 RX330

INITIALIZING THE TIRE PRESSURE WARNING SYSTEM

lx04rx330_sm1_5-461aa.gif

  1. Check and adjust the tire pressure to the specified value.

  2. With the vehicle stopped, turn the ignition switch to the ON position.

  3. Press and hold the tire pressure warning standardization switch until the tire pressure warning lamp blinks 3 times at a 1 second interval.

HINT:  If the tire pressure warning lamp does not blink, perform the initialization again. (with the ignition switch off, perform the procedure above starting at step (b).)

  1. Drive the vehicle at 30 km/h (19 mph) or more, to complete the initialization of the skid control ECU. (It takes about 0.5 to 1.0 hour.)

HINT:  If the tire pressure warning lamp blinks at 0.25 second intervals while the vehicle is being driven, the initialization may have failed. If so, perform the initialization again. (Turn the ignition switch OFF and retry from step (a).)

  1. After initialization, is completed the skid control ECU monitors the tire pressure. Using the wheel speed sensors.

  2. To verify the system has been initialized check the length of time the tire pressure warning lamp is on after turning the ignition switch to the ON position.

2004-2006 GX 470

  1. REGISTER TRANSMITTER ID

NOTE:  It is necessary to register the transmitter ID in the tire pressure monitor ECU when replacing the tire pressure monitor valve sub-assy and/or tire pressure monitor ECU.

    1. Set the tire pressure of all wheels to the specified value.

Front

Rear

Spare

220 kPa (2.2 kgf/cm2, 32 psi)

220 kPa (2.2 kgf/cm2, 32 psi)

220 kPa (2.2 kgf/cm2, 32 psi)

  1. Connect the hand-held tester to DLC3.

lx04gx470_esm_05-498aa.gif

  1. Turn the ignition switch to the ON position.

  2. Read and record the transmitter ID by using the DATA LIST.

  3. Select the registration mode "MAIN".

HINT:  Select "2nd" when registering in 2nd.

  1. Input the transmitter ID using the hand-held tester and transmit it to the tire pressure monitor ECU.

    1. Check that the transmitter ID registration is completed correctly.

lx04gx470_esm_05-499aa.gif

HINT:  If the operation of step (d) to (g) does not complete within 5 min., the mode will return to the normal operation mode.

  1. CONFIRMATION OF TRANSMITTER ID REGISTRATION

  1. Set the tire pressure of all wheels to the specified value.

Front

Rear

Spare

220 kPa (2.2 kgf/cm2, 32 psi)

220 kPa (2.2 kgf/cm2, 32 psi)

220 kPa (2.2 kgf/cm2, 32 psi)

  1. Connect the hand-held tester to DLC3.

lx04gx470_esm_05-500aa.gif

  1. Turn the ignition switch to the ON position.

  2. Select the "SIGNAL CHECK" mode on the hand-held tester.

  3. Forcibly transmit the transmitter IDs for all wheels.

HINT:

  1. Check that test mode DTCs C2181/81, C2182/82, C2183/83, C2184/84 and C2185/85 are all erased.

HINT:  If they haven't been erased, reset the tire pressure to the specified value and rotate the tire 90 to 270 degrees. Then forcibly transmit the transmitter IDs of all wheels. If they are still output, register the transmitter IDs again.

  1. Set the tire pressure of all wheels to the specified value.

  1. PROCEDURE FOR DETERMINING THE INSTALLED WHEEL'S TRANSMITTER ID STATUS ("MAIN" or "2nd")

  1. Turn the ignition switch to the ON position.

  2. Set the tire pressure warning switch "MAIN" position.

  1. Set the tire pressure of all wheels to the specified value.

Front

Rear

Spare

220 kPa (2.2 kgf/cm2, 32 psi)

220 kPa (2.2 kgf/cm2, 32 psi)

220 kPa (2.2 kgf/cm2, 32 psi)

  1. Rapidly reduce the pressure of any wheel to 120 kPa (1.2 kgf/sq.cm, 17 psi).

  2. Check the following items. If both of them are true, the transmitter ID of the currently installed wheel is registered in the "MAIN".

  1. If either of the above conditions is not true, switch the tire pressure warning switch to "2nd" and perform steps (c) to (e). If both are true, the transmitter ID of the currently installed wheel is registered in "2nd".

2006 GS 300 AWD, GS 430

INITIALIZING THE TIRE PRESSURE WARNING SYSTEM

  1. INITIALIZATION

NOTICE: Initialization is necessary after replacing either the ECU, tires with different tire pressure or tire pressure monitor valve sub-assembly, after rotating the tires, or when a new vehicle is delivered.

  1. Set the tire air pressure for 4 wheels, to the specified value.

  2. Keep the tire pressure warning reset switch pressed for 3 seconds or more with the engine switch ON (IG).

  3. Check that the tire pressure warning light blinks 3 times ( 1 second ON, 1 second OFF ). If the engine is on, "PRESSURE INITIAL" will be displayed on the multi-information display.

HINT:

  1. Confirm that initialization is completed using the intelligent tester.

  2. Check that the pressure for each tires is displayed in INIT THRESHOLD 1 to 4.

  3. Initialization is completed.

2006 LX 470

INITIALIZING THE TIRE PRESSURE WARNING SYSTEM

  1. INITIALIZATION

NOTICE:

  1. Set the tire air pressure for all wheels (including the spare tire) to the specified value.

  2. Keep the tire pressure warning reset switch pressed for 3 seconds or more with the ignition switch ON.

  3. Check that the tire pressure warning light blinks 3 times (1 second ON, 1 second OFF).

HINT:

  1. Confirm that initialization is completed using the intelligent tester.

  2. Check that the pressure for each tires is displayed in INIT THRESHOLD 1 to 5.

  3. Initialization is completed.