DTC 77

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

DESCRIPTION

Initialization is necessary if one of the following occurs: 1) the ECU is replaced; 2) a tire pressure warning valve and transmitter is replaced; 3) tires with a different tire pressure are installed; 4) the tires are rotated; or 5) a new vehicle is delivered.





WIRING DIAGRAM





INSEPCTION PROCEDURE

NOTICE:
* When replacing the tire pressure warning ECU and receiver, read the IDs stored in the old ECU using the Techstream and write them down before removal.
* It is necessary to perform initialization Programming and Relearning after registration Programming and Relearning of the transmitter IDs into the tire pressure warning ECU and receiver after the ECU and/or valve and transmitter has been replaced.
PROCEDURE

1. CHECK FREQUENCY RECEIVING CONDITION

(a) Check for the conditions 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 come on only 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 the surroundings, or devices installed by the user.

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

2. CHECK TIRE PRESSURE WARNING SELECT SWITCH

(a) Check the position of the tire pressure warning select switch (MAIN or 2nd).

OK:

The tire pressure warning select switch is set to the position for the wheels being used.

NG -- CHANGE TIRE PRESSURE WARNING SELECT SWITCH POSITION
OK -- Continue to next step.

3. PERFORM INITIALIZATION

(a) Perform initialization Programming and Relearning.

NEXT -- Continue to next step.

4. CONFIRM TIRE INFLATION PRESSURE (DATA LIST) C2121

B -- END

A -- GO TO DTC C2121/21 TO C2124/24 FLOWCHART C2121