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) 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 COMBINATION METER ASSEMBLY INNER CIRCUIT









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