C2171

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

DTC C2171/71 - Transmitter ID not Registered

DESCRIPTION

The transmitter IDs of each tire pressure warning valve and transmitter are registered to the tire pressure warning ECU.
When the IDs have never been registered, a DTC is output.






INSPECTION PROCEDURE
NOTICE:
- When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using Techstream and note 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 TRANSMITTER IDS)
(a) Turn the ignition switch OFF.
(b) Connect Techstream to the DLC3.
(c) Turn the ignition switch ON and 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 IDs are displayed on the tester screen.

Result





B -- CONFIRM TIRE INFLATION PRESSURE (DATA LIST)
A -- Continue to next step.
2. PERFORM REGISTRATION (TRANSMITTER ID)
(a) Register the transmitter IDs for all 4 tires .
NEXT -- Continue to next step.
3. PERFORM INITIALIZATION
(a) Perform initialization .
NEXT -- Continue to next step.
4. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)
(a) Turn the ignition switch OFF.
(b) Connect Techstream to the DLC3.
(c) Turn the ignition switch ON and 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 5 to 6 minutes until the values are displayed.
- When no "ID Tire Inflation Pressure" has changed, rotate the tire 90 to 270°. Then recheck it.

Result:






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