Highlander 2WD V6-3.3L (3MZ-FE) (2004)
c. Inspect using an oscilloscope.
Terminals Of ECU/Pinouts - Check Transponder ECU Assy
2. CHECK TRANSPONDER KEY ECU ASSY
a. Disconnect the T14 ECU connector, and measure the voltage and resistance 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.
b. Reconnect the T14 ECU connector, and measure the voltage between each terminal of the connector.
If the result is not as specified, the ECU may have a malfunction.