C2171

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

DTC C2171/71 - Transmitter ID not Registered

DESCRIPTION

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





INSPECTION PROCEDURE
NOTICE:
- When replacing the tire pressure warning ECU, read the IDs stored in the ECU using Techstream and note 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 has been replaced.

PROCEDURE

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

Tire Pressure Monitor





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

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 C2124/24 C2121.

Result:





B -- REPLACE TIRE PRESSURE WARNING ECU
A -- PERFORM INITIALIZATION