Pinout Values and Diagnostic Parameters

2AZ-FXE STARTING: SMART KEY SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK MAIN BODY ECU (INSTRUMENT PANEL J/B)





(a) Disconnect the IR, IA, IK, ID, IF, IM E6, E7 and E8 ECU connectors.
(b) Measure the voltage and resistance of the wire harness side connector.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the ECU connectors.
(d) Measure the voltage of the connector.





HINT: *1: TMC Made
*2: TMMK Made
If the result is not as specified, the ECU may have a malfunction.
(e) Using an oscilloscope, check the signal waveform of the ECU.




(1) Waveform 1





HINT: As the vehicle speed increases, the wavelength shortens.




(2) Waveform 2









(3) Waveform 3






2. CHECK CERTIFICATION ECU





(a) Disconnect the E58 ECU connector.
(b) Measure the voltage and resistance of the wire harness side connector.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the E58 ECU connector.
(d) Measure the voltage of the connector.





If the result is not as specified, the main body ECU may have malfunction.
3. CHECK HV CONTROL ECU





(a) Disconnect the A61 and C64 ECM connectors.
(b) Measure the voltage and resistance of the wire harness side connectors.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the ECU connectors.
(d) Measure the voltage of the connectors.





If the result is not as specified, the ECU may have a malfunction.





(e) Using an oscilloscope, check the signal waveform of the ECU.






4. CHECK STEERING LOCK ECU





(a) Disconnect the E51 ECU connector.
(b) Measure the voltage and resistance of the wire harness side connector.





If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the E51 ECU connector.
(d) Measure the voltage of the connector.





If the result is not as specified, the ECU may have a malfunction.