- Tire pressure warning valve and transmitter
- Tire pressure warning ECU
| Last Modified: 11-27-2007 | 1.6 C | |
| Service Category: Suspension | Section: Tire Pressure Monitoring | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002DZD027X |
| Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DESCRIPTION (2008 LX570) | ||
|
DTC |
C2111/11 |
Transmitter ID1 Operation Stop |
|
DTC |
C2112/12 |
Transmitter ID2 Operation Stop |
|
DTC |
C2113/13 |
Transmitter ID3 Operation Stop |
|
DTC |
C2114/14 |
Transmitter ID4 Operation Stop |
|
DTC |
C2115/15 |
Transmitter ID5 Operation Stop |
DESCRIPTION
The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressures of the tires. The measured values are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU. The ECU compares the measured tire pressure values with the tire pressure threshold. When the measured tire pressure value is less than this threshold, the warning light in the combination meter turns on. The tire pressure warning ECU stores a DTC when the tire pressure warning valve and transmitter stops transmitting signals. The stored DTC is cleared when the signal transmission is resumed.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C2111/11 C2112/12 C2113/13 C2114/14 C2115/15 |
The tire pressure warning valve and transmitters stop transmitting signals. |
|
HINT:
It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because it cannot be identified by the output DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
PERFORM FORCED TRANSMISSION OF TRANSMITTER ID OF ALL WHEELS |
(a) Set the tire pressures to the specified value(s)
.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) 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
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
ID1 Tire Inflation Pressure |
ID1 tire inflation pressure/ min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2, 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for the relative pressure (gauge), the data has not been received.* |
|
ID2 Tire Inflation Pressure |
ID2 tire inflation pressure/ min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2, 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for the relative pressure (gauge), the data has not been received.* |
|
ID3 Tire Inflation Pressure |
ID3 tire inflation pressure/ min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2, 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for the relative pressure (gauge), the data has not been received.* |
|
ID4 Tire Inflation Pressure |
ID4 tire inflation pressure/ min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2, 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for the relative pressure (gauge), the data has not been received.* |
|
ID5 Tire Inflation Pressure |
ID5 tire inflation pressure/ min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2, 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for the relative pressure (gauge), the data has not been received.* |
HINT:
-
*: It may take about 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2125/25
.
- The tire pressure information reception condition can also be confirmed through the multi-information display tire pressure display screen.
(f) Rapidly reduce the tire pressure for each tire at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds.
(g) Check that each tire pressure data displayed on the Techstream screen has changed.
Result
|
Result |
Proceed to |
|---|---|
|
Tire pressure values are not displayed. |
A |
|
All tire pressure readings are equal to specified values. |
B |
NOTICE:
- It takes about 2 or 3 minutes to display the updated tire pressure data.
- When the "ID Tire Inflation Pressure" data has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270° (including the spare tire). Then rapidly release the tire pressure and recheck it.
(h) After confirming that all of the tire pressure data displayed on the Techstream screen has changed, set the tire pressure of all tires to the specified value(s).
HINT:
If the tire pressure data displayed on the Techstream screen has not changed after rechecking, inspect the other problem (malfunction in transmission or reception function)
.
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