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Last Modified: 11-29-2007 |
1.6 C |
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Service Category: Suspension |
Section: Tire Pressure Monitoring |
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Model Year: 2008 |
Model: Sequoia |
Doc ID: RM000002DZY01UX |
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Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DESCRIPTION (2008 Sequoia) |
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DTC
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C2171/71
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Transmitter ID not Registered
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DESCRIPTION
The transmitter IDs of each tire pressure warning valve and transmitter are registered to the tire pressure warning ECU.
When the IDs have never been registered, a DTC is stored.
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DTC Code
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DTC Detection Condition
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Trouble Area
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C2171/71
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Transmitter ID is not registered (when a transmitter ID is unregistered for 3 minutes or more).
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Tire pressure warning ECU
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INSPECTION PROCEDURE
NOTICE:
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When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the Techstream and note them down before removal.
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It is necessary to perform initialization
after registration
of the transmitter IDs into the tire pressure warning ECU after the ECU has been replaced.
PROCEDURE
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1.
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CONFIRM REGISTRATION CONDITION (REGISTERED TRANSMITTER IDS)
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(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and turn the Techstream on.
(d) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(e) Check the values by referring to the table below.
Tire Pressure Monitor
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Tester Display
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Measurement Item/Display
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Normal Condition
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Diagnostic Note
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Registered ID1 Code
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Registered ID1 code/
min.: 0
max.: FFFFFFFF*
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The transmitter ID registered in the transmitter ID1 is displayed
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*: Displayed only when the transmitter ID is not registered.
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Registered ID2 Code
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Registered ID2 code/
min.: 0
max.: FFFFFFFF*
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The transmitter ID registered in the transmitter ID2 is displayed
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*: Displayed only when the transmitter ID is not registered.
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Registered ID3 Code
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Registered ID3 code/
min.: 0
max.: FFFFFFFF*
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The transmitter ID registered in the transmitter ID3 is displayed
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*: Displayed only when the transmitter ID is not registered.
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Registered ID4 Code
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Registered ID4 code/
min.: 0
max.: FFFFFFFF*
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The transmitter ID registered in the transmitter ID4 is displayed
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*: Displayed only when the transmitter ID is not registered.
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Result
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Result
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Proceed to
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The registered transmitter IDs are not displayed on the Techstream screen.
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A
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The registered transmitter IDs are displayed on the Techstream screen.
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B
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| A |
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2.
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PERFORM REGISTRATION (TRANSMITTER ID)
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(a) Register the transmitter IDs for all 4 tires
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| NEXT |
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3.
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PERFORM INITIALIZATION
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(a) Perform initialization
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| NEXT |
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4.
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CONFIRM TIRE INFLATION PRESSURE (DATA LIST)
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(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and turn the Techstream on.
(d) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(e) Check the values by referring to the table below.
Tire Pressure Monitor
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Tester Display
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Measurement Item/Range
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Normal Condition
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Diagnostic Note
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ID1 Tire Inflation Pressure
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ID1 tire inflation pressure /
min.: Absolute pressure / 100 kPa (1 kgf/cm2, 14 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure / 449.35 kPa (4.6 kgf/cm2, 65 psi), Relative pressure / 349.35 kPa (3.6 kgf/cm2, 51 psi)
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Actual tire inflation pressure
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If 100 kPa (1 kgf/cm2, 14 psi) is displayed for absolute pressure or 0 kPa (0 kgf/cm2, 0 psi) is displayed for relative pressure, data has not been received*.
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ID2 Tire Inflation Pressure
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ID2 tire inflation pressure /
min.: Absolute pressure / 100 kPa (1 kgf/cm2, 14 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure / 449.35 kPa (4.6 kgf/cm2, 65 psi), Relative pressure / 349.35 kPa (3.6 kgf/cm2, 51 psi)
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Actual tire inflation pressure
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If 100 kPa (1 kgf/cm2, 14 psi) is displayed for absolute pressure or 0 kPa (0 kgf/cm2, 0 psi) is displayed for relative pressure, data has not been received*.
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ID3 Tire Inflation Pressure
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ID3 tire inflation pressure /
min.: Absolute pressure / 100 kPa (1 kgf/cm2, 14 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure / 449.35 kPa (4.6 kgf/cm2, 65 psi), Relative pressure / 349.35 kPa (3.6 kgf/cm2, 51 psi)
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Actual tire inflation pressure
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If 100 kPa (1 kgf/cm2, 14 psi) is displayed for absolute pressure or 0 kPa (0 kgf/cm2, 0 psi) is displayed for relative pressure, data has not been received*.
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ID4 Tire Inflation Pressure
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ID4 tire inflation pressure /
min.: Absolute pressure / 100 kPa (1 kgf/cm2, 14 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 psi)
max.: Absolute pressure / 449.35 kPa (4.6 kgf/cm2, 65 psi), Relative pressure / 349.35 kPa (3.6 kgf/cm2, 51 psi)
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Actual tire inflation pressure
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If 100 kPa (1 kgf/cm2, 14 psi) is displayed for absolute pressure or 0 kPa (0 kgf/cm2, 0 psi) is displayed for relative pressure, data has not been received*.
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HINT:
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*: It may take about 5 to 6 minutes until the values are displayed.
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When no "ID Tire Inflation Pressure" has changed, rotate the tire 90 to 270°. Then recheck it.
Result
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Result
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Proceed to
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All tire pressure readings are equal to specified values.
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A
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Tire pressure values are not displayed.
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B
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| A |
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