Engine Immobiliser System (w/ Smart Key System)

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

1. CHECK ENGINE SWITCH





(a) Disconnect the E78 switch 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 E78 switch connector.

(d) Measure the resistance and voltage of the connector.





HINT
*: Remove the key's battery before performing this inspection.

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





(e) Using an oscilloscope, check waveform 1.





HINT
*: Remove the key's battery before performing this inspection.





(f) Using an oscilloscope, check waveform 2.





HINT
*: Remove the key's battery before performing this inspection.

2. CHECK ECU AGGREGATION BOX (CERTIFICATION ECU)





(a) Disconnect the E84 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 E84 connector.

(d) Measure the resistance and voltage of the connector.





HINT
*: Remove the key's battery before performing this inspection.

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





(e) Using an oscilloscope, check waveform 1.





HINT
*: Remove the key's battery before performing this inspection.





(f) Using an oscilloscope, check waveform 2.





HINT
*: Remove the key's battery before performing this inspection.

3. CHECK ID CODE BOX





(a) Disconnect the E79 box 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 E79 box connector.

(d) Measure the voltage of the connector.





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





(e) Using an oscilloscope, check waveform 1.









(f) Using an oscilloscope, check waveform 2.





4. CHECK STEERING LOCK ACTUATOR (STEERING LOCK ECU)





(a) Disconnect the E77 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.

5. CHECK INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)









(a) Disconnect the ID, IE, E15 and E16 junction block connectors.

(b) Measure the resistance and voltage of the wire harness side connectors.





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