Wireless Door Lock Control System (w/ Smart Key System)

DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Key System): TERMINALS OF ECU

1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)





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(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly Removal.

(b) Measure the resistance and voltage according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction in the wire harness side or in the instrument panel junction block assembly.

(c) Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly Removal.

(d) Measure the voltage according to the value(s) in the table below.









If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may have a malfunction.

2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)





(a) Disconnect the C35 certification ECU (smart key ECU assembly) connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.





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

(c) Reconnect the C35 certification ECU (smart key ECU assembly) connector.

(d) Measure the voltage according to the value(s) in the table below.












* If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.

(e) Using an oscilloscope, check waveform 1.





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Waveform 1 (Reference)








(f) Using an oscilloscope, check waveform 2.





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Waveform 2 (Reference)








(g) Using an oscilloscope, check waveform 3.





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Waveform 3 (Reference)