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Home >> Lexus >> 2020 >> LS 500 Base, AWD >> Repair and Diagnosis (Single Page) >> Suspension >> Wheels & Tire System >> Tire Pressure Warning System - Diagnostic Codes & Circuit Tests >> Tire Pressure Warning System >> DTC C2121: No Signal from Transmitter ID1; DTC C2122: No Signal from Transmitter ID2; DTC C2123: No Signal from Transmitter ID3; DTC C2124: No Signal from Transmitter ID4; DTC C2181: Transmitter ID1 not Received (Test Mode DTC); DTC C2182: Transmitter ID2 not Received (Test Mode DTC); DTC C2183: Transmitter ID3 not Received (Test Mode DTC); DTC C2184: Transmitter ID4 not Received (Test Mode DTC) [12/2017 - 10/2020] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • When replacing the tire pressure warning ECU and receiver, first use the Techstream to record all of the current IDs and registered tires with transmitters (4 or 5 tires) of the tire pressure warning valve and transmitter registered to the tire pressure warning ECU and receiver.
  • It is necessary to perform initialization. Refer to INITIALIZATION [12/2017 - 10/2023] after registration. Refer to REGISTRATION [12/2017 - 10/2020] of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU and/or one of the valve and transmitters has been replaced.
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