Smart Key System (for Entry Function)
THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function): TERMINALS OF ECU
1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the E29 and E30 ECU connectors.
(b) Measure the resistance and voltage of the wire harness side connector.
* If the result is not as specified, the wire harness side may have a malfunction.
(c) Reconnect the E29 and E30 ECU connectors.
(d) Measure the voltage of the connector.
* If the result is not as specified, the ECU may have a malfunction.
2. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
(a) Disconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.
(b) Measure the resistance and voltage of the wire harness side connectors.
* If the result is not as specified, the wire harness side may have a malfunction.
(c) Reconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.
(d) Measure the voltage of the connectors.
If the result is not as specified, the ECU may have a malfunction.
(e) Using an oscilloscope, check waveform 1.
Waveform 1 (Reference)
(f) Using an oscilloscope, check waveform 2.
Waveform 2 (Reference)
(g) Using an oscilloscope, check waveform 3.
Waveform 3 (Reference)
(h) Using an oscilloscope, check waveform 4.
Waveform 4 (Reference)
(i) Using an oscilloscope, check waveform 5.
Waveform 5 (Reference)
(j) Using an oscilloscope, check waveform 6.
Waveform 6 (Reference)
(k) Using an oscilloscope, check waveform 7.
Waveform 7 (Reference)
(l) Using an oscilloscope, check waveform 8.
Waveform 8 (Reference)
(m) Using an oscilloscope, check waveform 9.
Waveform 9 (Reference)
(n) Using an oscilloscope, check waveform 10.
Waveform 10 (Reference)
(o) Using an oscilloscope, check waveform 11.
Waveform 11 (Reference)
(p) Using an oscilloscope, check waveform 12.
Waveform 12 (Reference)
