C2172

TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2171/71: Transmitter ID not Registered in Main Mode

DTC C2171/71 - Transmitter ID not Registered in Main Mode

DTC C2172/72 - Transmitter ID not Registered in 2nd Mode

DESCRIPTION

The IDs of each tire pressure warning valve and transmitter are registered to the tire pressure warning ECU.
When the ECU detects that an ID is not the one of registered IDs, or cannot receive an ID signal, a DTC is output.






INSPECTION PROCEDURE
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 the initialization Initialization after the registration Registration of the transmitter IDs into the tire pressure warning ECU if the ECU has been replaced.

PROCEDURE

1. CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES)
(a) Make sure that the ignition switch is off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Turn the Techstream on.
(e) Check the values by referring to the table below. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

Tire Pressure Monitor:





OK:
The registered transmitter ID codes are displayed on the Techstream.
NG -- READ VALUE OF DATA LIST
OK -- Continue to next step.
2. PERFORM REGISTRATION (TRANSMITTER ID)
(a) Register the transmitter IDs for all the wheels Registration.
NEXT -- Continue to next step.
3. READ VALUE OF DATA LIST
(a) Make sure that the ignition switch is off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Turn the Techstream on.
(e) Check the values by referring to the table below. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

Tire Pressure Monitor:





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 C2121.
- If 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 reduce the tire pressure and recheck it.

Result:






B -- REPLACE TIRE PRESSURE WARNING ECU
A -- END