Transmitter ID4 Operation Stop - Tire Pressure Monitoring

TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2111/11-C2114/14: Transmitter ID1 Operation Stop
C2114/14 - Transmitter ID4 Operation Stop

DESCRIPTION

The tire pressure warning valve and transmitters installed in the tire and wheel assemblies measure the tire pressures of the tires. The measured values are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU. The ECU compares the measured tire pressure values with the tire pressure threshold. When the measured tire pressure value is less than this threshold, the warning light in the combination meter illuminates. The tire pressure warning ECU stores a DTC when the tire pressure warning valve and transmitter stops transmitting signals. The stored DTC is cleared when the signal transmission is resumed.





HINT
It is necessary to perform this procedure in order to identify the malfunctioning tire pressure warning valve and transmitter because it cannot be identified by only the output DTCs.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM FORCED TRANSMISSION OF TRANSMITTER ID OF ALL WHEELS

(a) Set the tire pressure to the specified value Component Tests and General Diagnostics.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

(f) Check the values by referring to the table below.

Tire Pressure Monitor





HINT
*: It may take up to a few 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.

(g) Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm2, 5.8 psi ) within 30 seconds.

(1) Check that each tire pressure data displayed on the Techstream has changed.

OK:

Each tire pressure data displayed on the Techstream will change to the value of the tire pressure.

NOTICE:
* It may take up to a few minutes to display the updated tire pressure data.
* When the "ID Tire Inflation Pressure" data has not 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.

(2) After confirming that all of the tire pressure data displayed on the Techstream has changed, set the tire pressure to the appropriate specified values.

HINT
If the tire pressure data displayed on the Techstream has not changed after rechecking, inspect the other problem (malfunction in transmission or reception function) C2121.

NG -- INSPECT OTHER PROBLEM (MALFUNCTION IN TRANSMISSION OR RECEPTION FUNCTION)

OK -- END