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)
(a) Turn the engine switch off.
(b) Connect Techstream to the DLC3.
(c) Turn the engine switch on (IG) and turn the tester on.
(d) Enter the following menus: Chassis / Tire Pressure Monitor / Trouble Codes.
(e) Read the DTCs.
Result:
NOTICE:
When DTC C2173/73 is output, troubleshoot that DTC first. Then troubleshoot DTCs C2121/21 to C2124/24.
B -- GO TO DTC C2173/73
A -- Continue to next step.
2. CHECK FREQUENCY RECEIVING CONDITION
(a) Check that the vehicle is located in an area such as described below:
(1) Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.
HINT
If the vehicle is located in an area described above, the tire pressure warning light may turn on only in a particular area due to
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