Transmitter ID4 Error - Tire Pressure Monitoring
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2141/41-C2144/44: Transmitter ID1 Error
C2144/44 - Transmitter ID4 Error
DESCRIPTION
The tire pressure warning valves and transmitters that are installed in the tire and wheel assemblies measure the air pressure 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 air pressure values with the air pressure threshold. When the measured air pressure value is less than this threshold, the warning light in the combination meter turns on.
When the internal circuit of a tire pressure warning valve and transmitter is malfunctioning, one of these DTCs is output.
HINT
It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because it cannot be identified by the output DTC.
INSPECTION PROCEDURE
NOTICE:
* When replacing the tire pressure warning ECU, read the IDs stored in the old ECU using the Techstream and write 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 and/or valve and transmitter has been replaced.
PROCEDURE
1. IDENTIFY TRANSMITTER CORRESPONDING TO DTC
(a) Set the tire pressure to the specified value Service Precautions.
(b) Turn the ignition switch to OFF.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON and turn the tester on.
(e) Enter the following menus: Chassis / Tire Pressure Monitor / Data List
(f) Display the "TIRE PRESS" or "ID Tire Inflation Pressure" data for each wheel using the tester.
(g) Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds. If "TIRE PRESS" or "ID Tire Inflation Pressure" data displayed on the tester (ID1 to ID4) does not change, the tire pressure warning valve and transmitter corresponding to the unchanged "TIRE PRESS" or "ID Tire Inflation Pressure" data was the cause of the output DTC.
HINT
* Identify the malfunctioning tire pressure warning valve and transmitter by repeatedly decreasing the tire pressure for each tire.
* Record which "TIRE PRESS" or "ID Tire Inflation Pressure" data (ID1 to ID4) corresponds to which tire.
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.
(h) Check the DATA LIST.
Result
NOTICE:
* When "TIRE PRESS" or "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 forcibly transmit the transmitter ID and recheck.
* Record the transmitter ID and position of transmitters that are normal.
(i) When the "TIRE PRESS" or "ID Tire Inflation Pressure" data (ID1 to ID4) has changed, repeat this procedure to identify the tire pressure warning valve and transmitter that corresponds to the DTC.
(j) When all of the "TIRE PRESS" or "ID Tire Inflation Pressure" data (ID1 to ID4) has changed, identify the malfunctioning tire pressure warning valve and transmitter using recorded ID numbers and output DTC.
(k) Set the tire pressures to the appropriate specified values Testing and Inspection.
NEXT -- Continue to next step.
2. REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER
(a) Replace the identified tire pressure warning valve and transmitter with a new one Removal.
HINT
* Before installing a new tire pressure warning valve and transmitter, read and write down its transmitter ID.
* The IDs for the tire pressure warning valves and transmitters that are not replaced should be checked using the tester and recorded.
NEXT -- Continue to next step.
3. REGISTRATION OF TRANSMITTER ID
(a) Register the transmitter ID for all wheels Registration.
NEXT -- Continue to next step.
4. PERFORM INITIALIZATION
(a) Perform initialization Initialization.
NEXT -- Continue to next step.
5. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)
(a) Turn the ignition switch to OFF.
(b) Connect the 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 "TIRE PRESS" or "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 -- END
A -- REPLACE TIRE PRESSURE WARNING ECU Removal