I just wanted to know how the permant live (kam memory) is read by the ECU. The waveform tested of my car at permanent live shows 12v from battery and the ECU earth waveform oscillates. Do you know why the earth is oscillating, i.e. switching down to ground and back up again. Is this typical for an earth circuit? some advice would be great, thanks.
Apr 9, 2009 at 1:47 PM
