I haven't actually done a recalibration but from the book you don't really dial in any corrections. You tell the NAV to calibrate and then drive until it says it's done. It measures wheel pulses and GPS satellite derived distance travelled during the calibration and automatically developes a miles/pulse algorithm from that. At least that's how I read it.
Aren't you guys saying the same thing, except that the signal comes from the rotation signal for MG2 rather than the wheel rotation sensors?
spiff72 — Yes! My point was that the wheel rotation sensors aren't connected to the NAV — the NAV does not measure wheel pulses. Either way, of course, the NAV gets a speed signal from the car, and one from the GPS, and presumably adjusts the car's reading to agree with that of the GPS.
Re: Diagnostic Screen on Nav-equipped hybrids
