I am trying to control a GM dash that uses class 2 serial data (J1850 VPW), to control the secondary gauges. I am looking for the control PIDs that are used to command these gauges. Or does the dash query the PCM repeatedly? I am also looking for any info on controlling the DIC on the dash. It is a 98 Corvette dash.
No announcement yet.
Looking for info on GM Class 2 Dash Control