Toyota vehicles prior to 2009 are equipped with a Tire Pressure Warming Reset that can be used for initialization. When the bottom is pushed and held for more than 3 seconds, the vehicles receivers are open and looking for the currently stored TPMS IDS.
What if there is a missing or broken sensor?
What if there are new sensors on the vehicle that haven’t yet been programmed?
This will cause these vehicles to become stuck in a loop, searching for TPMS IDS that are no longer there.
N2 USA has developed the Toyota Loop Reset tool to hands this issue.
N2 TOYOTA TPMS Loop Reset Tool
How to Tell the Vehicles Is In the “loop”?
When a Toyota vehicle is stuck in the “loop”, the technician will not be able to write IDS using the OBD COMMS, and the tool will error out.
To verify it is a result of the loop condition, the technician can select the READ IDS option, which will connect and read out the IDS.
IF THIS SUCCESSFUL, THE WEHICLE IS IN THE “LOOP ”.
How to Use the WPROG-08 to Reset the Vehicle
Insert the WPROG-08 into the DLC3(0BD port) on the vehicle.
Once connected, hear the beep sound into the programming mode, press and Hold the WPROG-08 button for at least 20 seconds.
Remove the WPROG-08, and the resume the TPM relearn using your Tech 400/400p TPMS tool.
TOOL does not work with Land Cruiser models.
1pc x N2 TOYOTA TPMS Loop Reset Tool
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