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 to the tire pressure warning ECU.
When the ECU detects that an ID is not one of the 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 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 after the ECU has been replaced.
PROCEDURE
1. CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES)
(a) Turn the power switch off.
(b) Connect Techstream to the DLC3.
(c) Turn the power switch on (IG) and turn the tester ON.
(d) Enter the following menus:
(1) Select: 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 Techstream.
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 the wheels Registration.
NEXT -- Continue to next step.
3. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)
(a) Turn the power switch off.
(b) Connect Techstream to the DLC3.
(c) Turn the power switch on (IG) and turn the tester ON.
(d) Enter the following menus:
(1) Select: 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 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