Hybrid Battery System

P112 HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK BATTERY ECU





(a) Measure the voltage of the battery ECU connector.
HINT: Each ECU terminal's standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Symbols (Terminal No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
Use the illustration above as a reference for the ECU terminals.









(b) Using an oscilloscope, check the waveform 1.
Waveform 1 (HIGH-level CAN bus line):





HINT: The waveform varies depending on the contents of the communication.





(c) Using an oscilloscope, check the waveform 2.
Waveform 2 (LOW-level CAN bus line):





HINT: The waveform varies depending on the contents of the communication.





(d) Using an oscilloscope, check the waveform 3.
Waveform 3 (Battery blower motor actuation signal):





HINT: Amplitude A and B in the diagram vary by mode.