2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 172

NOTICE:

When DTCs C2121/21 to C2125/25 are set, DTC C2173/73 may be set simultaneously. In such cases, troubleshoot C2173/73 first,

then troubleshoot DTCs C2121/21 to C2125/25.

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.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

* When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using Techstream and write

them down before removal.

* It is necessary to perform initialization See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring

System/Testing and Inspection/Programming and Relearning/Initialization after registration See: Instrument Panel, Gauges

and Warning Indicators/Tire Monitoring System/Testing and Inspection/Programming and Relearning/Registration of the

transmitter IDs into the tire pressure warning ECU if the ECU and/or any of the valve and transmitters have been replaced.

PROCEDURE

1. READ OUTPUT DTC (DTC C2173/73)