Well I've had the opportunity to play around with the CIII+ a little. It worked on a 98 QX4, 2004 Frontier, 2009 Murano, 2009 Altima, 2009 Q37 and a 2011 Altima. Seems the claims of backward compatability might actually be true, as far as diag and NATS are con... Login to read more.