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 valve and transmitter are registered in the tire pressure warning ECU.
When the ECU detects that transmitter ID code is not registered in the ECU, a DTC is output.






INSPECTION PROCEDURE
NOTICE:
- When replacing the tire pressure warning ECU, read the IDs stored in the old ECU using a Techstream and write them down before removal.
- It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure warning ECU after the ECU has been replaced.

PROCEDURE

1. CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES)
(a) Turn the ignition switch off.
(b) Connect a Techstream to the DLC3.
(c) Turn the ignition switch to ON and turn the tester on.
(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 the tester 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.
NEXT -- Continue to next step.
3. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)
(a) Turn the ignition switch off.
(b) Connect a Techstream to the DLC3.
(c) Turn the ignition switch to ON and turn the tester on.
(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.
- 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°. Then rapidly release the tire pressure and recheck it.

Result





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