Operation CHARM: Car repair manuals for everyone.

Pinout Values and Diagnostic Parameters





METER: METER / GAUGE SYSTEM: TERMINALS OF ECU

1. CHECK COMBINATION METER ASSEMBLY













(a) Waveform 1 (Reference) : Using an oscilloscope









(b) Waveform 2 (Reference) : Using an oscilloscope









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





2. CHECK SKID CONTROL ECU

















(a) Waveform 2 (Reference) : Using an oscilloscope









3. CHECK ECM













(a) Waveform 1 (Reference) : Using an oscilloscope









4. CHECK COMBINATION METER INNER CIRCUIT









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