Pinout Values and Diagnostic Parameters

FA20 BATTERY / CHARGING: CHARGING SYSTEM: TERMINALS OF ECU; 2013 MY FR-S [03/2012 -]

1. CHECK ECM





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





If the result is not as specified, the ECU may have a malfunction.

(b) WAVEFORM 1





Generator





HINT
* The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
* A constant value is not output, as the duty ratio varies depending on the electrical load and battery condition.