GX 470 V8-4.7L (2UZ-FE) (2004)
c. Inspect using an oscilloscope.
Terminals Of ECU/Pinouts - Check Transponder Key ECU Assy
2. CHECK TRANSPONDER KEY ECU ASSY
a. Disconnect the T9 ECU connector, and check the voltage or continuity between each terminal of the wire harness side connector.
If the result is not as specified, there may be a malfunction on the wire harness side.