Engine Immobiliser System (w/ Smart Key System)

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM (w/ Smart Key System): TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK KEY SLOT





(a) Disconnect the K3 key slot connector.
(b) Measure the 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 K3 key slot connector.
(d) Measure the resistance and voltage of the connector.





If the result is not as specified, the key slot (amplifier) may have a malfunction.





(e) Using an oscilloscope, check the waveform 1.










(f) Using an oscilloscope, check the waveform 2.






2. CHECK TRANSPONDER KEY ECU





(a) Disconnect the T5 ECU connector.
(b) Measure the resistance and voltage 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 T5 ECU connector.
(d) Measure the voltage of the connector.





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





(e) Using an oscilloscope, check the waveform 1.










(f) Using an oscilloscope, check the waveform 2.










(g) Using an oscilloscope, check the waveform 3.










(h) Using an oscilloscope, check the waveform 4.






3. CHECK CERTIFICATION ECU





(a) Disconnect the S11 ECU connector.
(b) Measure the resistance and voltage of the wire harness side connector.





If the result is not as specified, there may be a malfunction on the wire harness side.
4. CHECK HYBRID VEHICLE CONTROL ECU





(a) Measure the resistance and voltage of the connectors.





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





(b) Using an oscilloscope, check the waveform 1.










(c) Using an oscilloscope, check the waveform 2.