C2177

TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2177/77: Initialization not Completed
C2177/77 - Initialization not Completed

DESCRIPTION

Initialization is necessary if one of the following occurs:

* Tire pressure warning ECU is replaced

* Tire pressure warning valve and transmitter is replaced

* Tires with a different tire standard pressure are installed

* Tires are rotated

* A new vehicle is delivered





WIRING DIAGRAM





INSPECTION PROCEDURE

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 Initialization after registration Registration of the transmitter IDs into the tire pressure warning ECU if the ECU and/or any of the valve and transmitters have been replaced.

PROCEDURE

1. CHECK FREQUENCY RECEIVING CONDITION

(a) Check that the vehicle is not located in an area such as 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 an area described above, the tire pressure warning light may come on after blinking 1 minute only in a particular area due to interfering radio frequencies.

(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 transmissions may be interrupted due to the surroundings, or devices installed by the user.

NG -- CHECK IF ANY DEVICE IS INSTALLED BY USER
OK -- Continue to next step.

2. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

(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

Tire Pressure Monitor:

HINT
* *: It may take about 2 or 3 minutes until the values are displayed.
* 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 degrees. Then rapidly release the tire pressure and recheck it.

Result:





B -- GO TO DTC C2121/21 TO C2124/24 DTC 84
A -- Continue to next step.

3. PERFORM INITIALIZATION

(a) Perform initialization Initialization.

NEXT -- Continue to next step.

4. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

(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

Tire Pressure Monitor:

HINT
* *: It may take about 2 or 3 minutes until the values are displayed.
* 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 degrees. Then rapidly release the tire pressure and recheck it.

Result:





B -- GO TO DTC C2121/21 TO C2124/24 DTC 84

A -- END