Operation CHARM: Car repair manuals for everyone.

Pinout Values and Diagnostic Parameters





METER: METER / GAUGE SYSTEM: TERMINALS OF ECU

1. CHECK NO. 1 METER ECU





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





HINT
*: Stands for electric parking brake

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

(b) Using an oscilloscope, check the waveform.





Waveform (Reference)





HINT
As vehicle speed increases, the cycle of the signal waveform narrows.

2. CHECK NO. 1 METER ECU INNER CIRCUIT

















This diagram shows all the indicators that are provided, which may differ from the actual vehicle.