- During initialization
- Signal is not received from tire pressure warning valve and transmitter for 20 minutes or more
- Vehicle speed is more than 8 km/h (5 mph) for a total of 20 minutes
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VIU7 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2177/77; Initialization not Completed; 2016 - 2020 MY Sienna [12/2015 - ] | ||
|
DTC |
C2177/77 |
Initialization not Completed |
DESCRIPTION
Initialization is necessary if one of the following occurs: 1) the ECU is replaced; 2) the tire pressure warning valve and transmitter is replaced; 3) tires with a different tire standard pressure are installed; or 4) a new vehicle is delivered.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C2177/77 |
When all conditions below are met: |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the tire pressure warning ECU, read the transmitter 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 valve and transmitter has been replaced.
PROCEDURE
|
1. |
CHECK FREQUENCY RECEIVING CONDITION |
(a) Check if the vehicle is in conditions such as the ones described below:
(1) Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.
HINT:
If the vehicle is located in areas described above, the tire pressure warning light may blink for a minute and turn on in a particular area.
(2) Devices using similar radio frequencies are used in the vehicle.
OK:
Facilities, or devices that use similar radio frequencies are not located in the vicinity of the vehicle.
HINT:
Radio frequency may be interrupted due to surroundings or devices installed by the user.
| NG |
|
CHECK IF ANY DEVICE IS INSTALLED BY USER |
|
|
2. |
PERFORM INITIALIZATION |
(a) Perform initialization (See page
).
|
|
3. |
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.
- When no "ID Tire Inflation Pressure" has changed, rotate the tire 90 to 270°. Then recheck it.
Result
|
Condition |
proceed to |
|---|---|
|
Tire pressure values are not displayed |
A |
|
All tire pressure readings are equal to specified values |
B |
| A |
|
| B |
|
END |
|
|