The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressure of each wheel. The measured values are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. 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 assembly illuminates.
When the internal circuit of a tire pressure warning valve and transmitter is malfunctioning, one of these DTCs is output.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| C214196 | Tire Pressure Monitor Transmitter ID 1 Component Internal Failure | Tire pressure warning valve and transmitter is malfunctioning | Tire pressure warning valve and transmitter | - |
| C214296 | Tire Pressure Monitor Transmitter ID 2 Component Internal Failure | Tire pressure warning valve and transmitter is malfunctioning | Tire pressure warning valve and transmitter | - |
| C214396 | Tire Pressure Monitor Transmitter ID 3 Component Internal Failure | Tire pressure warning valve and transmitter is malfunctioning | Tire pressure warning valve and transmitter | - |
| C214496 | Tire Pressure Monitor Transmitter ID 4 Component Internal Failure | Tire pressure warning valve and transmitter is malfunctioning | Tire pressure warning valve and transmitter | - |
It is necessary to perform the following procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because it cannot be identified by the output DTC.
When replacing the tire pressure warning valve and transmitter, read the transmitter IDs and number of the transmitters (4 or 5) stored in the old ECU using the GTS and write them down before removal.
It is necessary to perform initialization Suspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type B))>INITIALIZATION202304,999999,_53,_080780,_0592791,RM100000002AHU8, after registration Suspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type B))>REGISTRATION202304,999999,_53,_080780,_0592791,RM100000002AHU7,of the transmitter IDs into the tire pressure warning ECU and receiver if one of the valve and transmitters has been replaced.
Display the "ID Tire Position" value for each wheel using the GTS.
Refer to the following chart and check the wheel position of the DTC and transmitter match.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| ID 1 Tire Position | ID1 Tire Position | No Information or FL or FR or RL or RR or Spare or Judging | ID1 tire position is displayed | If no tire position information is stored, "No Information" will be displayed. |
| ID 2 Tire Position | ID2 Tire Position | No Information or FL or FR or RL or RR or Spare or Judging | ID2 tire position is displayed | If no tire position information is stored, "No Information" will be displayed. |
| ID 3 Tire Position | ID3 Tire Position | No Information or FL or FR or RL or RR or Spare or Judging | ID3 tire position is displayed | If no tire position information is stored, "No Information" will be displayed. |
| ID 4 Tire Position | ID4 Tire Position | No Information or FL or FR or RL or RR or Spare or Judging | ID4 tire position is displayed | If no tire position information is stored, "No Information" will be displayed. |
| Tester Display |
|---|
| ID 1 Tire Position |
| ID 2 Tire Position |
| ID 3 Tire Position |
| ID 4 Tire Position |
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