Hybrid Battery System

HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: TERMINALS OF ECU

1. CHECK BATTERY SMART UNIT





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





(a) If the result is not as specified, the battery smart unit may have a malfunction.

(b) Oscilloscope waveforms

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

(1) Waveform 1









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

(2) Waveform 2









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

(3) Waveform 3









HINT
The frequency of the waveform differs according to operation conditions of the cooling fan of the hybrid vehicle converter.