- ID registration failure
- Tire pressure warning valve and transmitter
- Tire pressure warning antenna and receiver
- Harness or connector
- Tire pressure warning ECU
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VIUB |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2126/26; Transmitter ID not Received in Main Mode; 2016 - 2020 MY Sienna [12/2015 - ] | ||
|
DTC |
C2126/26 |
Transmitter ID not Received in Main Mode |
DESCRIPTION
After all IDs are registered, DTC C2126/26 is set in the tire pressure warning ECU and the tire pressure warning light blinks for 1 minute and then comes on.
When the tire pressure warning ECU successfully receives radio waves from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is deleted and the tire pressure warning light goes off.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C2126/26 |
After ID registration is completed, until all tire pressure warning valve and transmitter IDs are received by tire pressure warning ECU. |
|
HINT:
The purpose of this DTC is to help prevent delivering a vehicle that has incorrectly registered IDs. After all IDs are registered. DTC C2126/26 is detected, and the tire pressure warning light blinks for 1 minute and then comes on. If the tire pressure warning light does not turn off after a little while, IDs may be incorrectly registered.
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the tire pressure warning ECU, read the IDs stored in the old ECU using the Techstream and write them down before removal.
-
It is necessary to perform initialization (See page
![2016 - 2020 MY Sienna [12/2015 - ]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: INITIALIZATION](/t3Portal/stylegraphics/info.gif)
) after registration (See page
) of the transmitter IDs into the tire pressure warning ECU after the ECU and/or tire pressure warning valve and transmitter has been replaced.
PROCEDURE
|
1. |
IDENTIFY TRANSMITTER NOT RECEIVED |
(a) Set the tire pressure to the appropriate specified values (See page
).
(b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(g) 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 / 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) |
Actual tire inflation pressure |
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.* |
|
ID2 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
|
ID3 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
|
ID4 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
HINT:
*: It may take up to 5 or 6 minutes until the values are displayed.
(h) Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds.
(i) Check the Data List.
NOTICE:
- It takes up to 5 or 6 minutes to display the updated tire pressure data.
- When no "ID Tire Inflation Pressure" data has changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270°. Then rapidly release the tire pressure and recheck it.
- Record the "ID Tire Inflation Pressure" data transmitter ID that corresponds to each tire.
(j) After confirming that the "ID Tire Inflation Pressure" data for one tire (ID1 to ID4) has changed, repeat this procedure one by one. Identify the transmitter not received.
Result
|
Condition |
Proceed to |
|---|---|
|
One or more transmitters abnormal |
A |
|
All normal |
B |
| B |
|
END |
|
|
2. |
CHECK TRANSMITTER ID |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(f) Check the values by referring to the table below.
Tire Pressure Monitor
|
Tester Display |
Measurement Item/Display |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Registered ID1 Code |
Registered ID1 code/ min.: 0 max.: FFFFFFFF* |
The ID No. registered in the transmitter ID1 is displayed |
*: Displayed only when the ID No. is not registered. |
|
Registered ID2 Code |
Registered ID2 code/ min.: 0 max.: FFFFFFFF* |
The ID No. registered in the transmitter ID2 is displayed |
*: Displayed only when the ID No. is not registered. |
|
Registered ID3 Code |
Registered ID3 code/ min.: 0 max.: FFFFFFFF* |
The ID No. registered in the transmitter ID3 is displayed |
*: Displayed only when the ID No. is not registered. |
|
Registered ID4 Code |
Registered ID4 code/ min.: 0 max.: FFFFFFFF* |
The ID No. registered in the transmitter ID4 is displayed |
*: Displayed only when the ID No. is not registered. |
(g) Check the ID number on the identified transmitter by removing it from the tire and wheel.
Text in Illustration
|
*1 |
Tire Pressure Warning Valve and Transmitter |
- |
- |
|
*a |
Transmitter ID (8-digit number) |
- |
- |
(h) Confirm that the ID number on the transmitter and recorded transmitter ID match.
Result
|
Result |
Proceed to |
|---|---|
|
Match |
A |
|
Do not match |
B |
| B |
|
|
|
3. |
REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER |
(a) Replace the tire pressure warning valve and transmitter (See page
).
|
|
4. |
REGISTRATION OF TRANSMITTER ID |
(a) Perform registration (See page
).
|
|
5. |
PERFORM INITIALIZATION |
(a) Perform initialization (See page
).
|
|
6. |
READ VALUE USING TECHSTREAM (TIRE INFLATION PRESSURE) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Tire Pressure Monitor/ Data List.
(f) 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 / 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) |
Actual tire inflation pressure |
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.* |
|
ID2 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
|
ID3 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
|
ID4 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
HINT:
- *: It may take up to 5 or 6 minutes until the values are displayed.
- If no "ID Tire Inflation Pressure" data has changed, rotate the tire 90 to 270°. Then recheck it.
Result
|
Result |
Proceed to |
|---|---|
|
Tire pressure values are not displayed. |
A |
|
All tire pressure readings are equal to specified values. |
B |
| B |
|
END |
|
|
7. |
REPLACE TIRE PRESSURE WARNING ANTENNA AND RECEIVER |
(a) Replace the tire pressure warning antenna and receiver (See page
).
|
|
8. |
READ VALUE USING TECHSTREAM (TIRE INFLATION PRESSURE) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(f) 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 / 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) |
Actual tire inflation pressure |
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.* |
|
ID2 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
|
ID3 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
|
ID4 Tire Inflation Pressure |
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) |
Actual tire inflation pressure |
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.* |
HINT:
- *: It may take up to 5 or 6 minutes until the values are displayed.
- If no "ID Tire Inflation Pressure" data has changed, rotate the tire 90 to 270°. Then recheck it.
Result
|
Result |
Proceed to |
|---|---|
|
All tire pressure readings are equal to specified values. |
A |
|
Tire pressure values are not displayed. |
B |
| A |
|
END |
| B |
|
|
|