Engine Immobilizer System

ENGINE IMMOBILIZER: ENGINE IMMOBILIZER SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK ENGINE SWITCH





(a) Disconnect the J31 switch connector.
(b) Measure the resistance of the wire harness.





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

(c) Reconnect the J31 switch connector.
(d) Measure the resistance and voltage at the connector.





HINT:
*: Remove the key battery before performing this inspection.
- If the result is not as specified, the switch may have a malfunction.

(e) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)





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




(2) Waveform 2 (Reference)





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

2. CHECK CERTIFICATION ECU





(a) Disconnect the P33 ECU connector.
(b) Measure the resistance and voltage at 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 P33 ECU connector.
(d) Measure the resistance and voltage of the connector.





HINT:
*: Remove the key battery before performing this inspection.
- If the result is not as specified, the ECU may have a malfunction.

(e) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)





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




(2) Waveform 2 (Reference)





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

3. CHECK ID CODE BOX





(a) Disconnect the J69 ECU connector.
(b) Measure the resistance and voltage at 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 J69 ECU connector.
(d) Measure the voltage of the connector.





- 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)






4. CHECK POWER SOURCE CONTROL ECU





(a) Disconnect the J55 ECU connector.
(b) Measure the resistance and voltage at the wire harness side connector.





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

5. CHECK STEERING CONTROL ECU





(a) Disconnect the J29 ECU connector.
(b) Measure the resistance and voltage at the wire harness side connector.





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

6. CHECK ECM





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





- 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)






7. CHECK MAIN BODY ECU RH (COWL SIDE J/B RH)





(a) Disconnect the RD and RM junction block connectors.
(b) Measure the resistance and voltage at 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 RD and RM junction block connectors.
(d) Measure the voltage of the connector.





- If the result is not as specified, the main body ECU RH (cowl side J/B RH) may have a malfunction.