Pinout Values and Diagnostic Parameters

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: TERMINALS OF ECU

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: TERMINALS OF ECU

1. CHECK TRANSPONDER KEY AMPLIFIER





(a) Disconnect the T7 amplifier 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 T7 amplifier connector.
(d) Measure the resistance and voltage of the connector.





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

(e) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)





2. CHECK TRANSPONDER KEY ECU ASSEMBLY





(a) Disconnect the T8 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 T8 ECU connector.
(d) Measure the voltage of the connector.





HINT: *1: w/ Cruise Control

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

(e) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)








(3) Waveform 3 (Reference)








(4) Waveform 4 (Reference)





3. CHECK ECM





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





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

(b) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)