Part 1

L110 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU





























NOTE: Do not measure voltage or waveform directly at the sealed side of the hybrid vehicle control ECU connectors. Doing so may damage the connectors because these connectors are waterproof.

1. Oscilloscope waveforms
HINT: Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.





(a) Waveform 1 (oil pump motor signal)










(b) Waveform 2 (oil pump motor signal)










(c) Waveform 3 (system main relay operation signal)










(d) Waveform 4 (immobilizer communication signal)










(e) Waveform 5 (CAN communication signal)





HINT: The waveform will vary depending on the content of the digital communication (digital signal).





(f) Waveform 6 (CAN communication signal)





HINT: The waveform will vary depending on the content of the digital communication (digital signal).





(g) Waveform 7 (GI signal)





HINT: The pulse cycle becomes shorter as the engine speed increases.





(h) Waveform 8 (NEI signal)





HINT: The pulse cycle becomes shorter as the engine speed increases.





(i) Waveform 9 (vehicle speed signal)





HINT: The higher the vehicle speed, the shorter the cycle.





(j) Waveform 10 (VLO signal)





HINT: The cycle will vary depending on the specified voltage of the hybrid vehicle converter.





(k) Waveform 11 (HV battery blower fan operation signal)










(l) Waveform 12 (HV water pump signal)










(m) Waveform 13 (power meter signal)










(n) Waveform 14 (communication signal from HV control ECU to MG ECU)





HINT: The waveform will vary depending on the content of the digital communication (digital signal).





(o) Waveform 15 (communication signal from MG ECU to HV control ECU)





HINT: The waveform will vary depending on the content of the digital communication (digital signal).





- Continued - Part 2