My car is saying to service vehicle soon after I drive it for a minute. So I connected my OBDII to it to see if it would give me a code, and I got nothing. Any advice?? The car runs perfect, and its a 2001 Z06. Any Advice what so ever is greatly appreciated.

Thanks
Al

 

You can confirm what you did with the scanner by pulling whatever codes there is by hitting buutons for the DIC, do a search for pulling codes, it's like hitting the Option once and the Fuel button four times,

From C5 DIY:
DIY Service Techs will be most interested in the IPC's display of diagnostic trouble codes (DTC) for all modules that transmit them. The "diagnostic display" mode is entered with the following procedure: 1) turn on the ignition but don't start the engine. 2) press the "reset" button to turn off any warning messages 2) press and hold "options" and 4) while holding "options", press "fuel" four times within a 10-second period.

Initially, on-board diagnostics go into "automatic" mode which shows DTCs in a pre-set sequence: PCM-TCS-RTD-BCM-IPC-radio-HVAC-LDCM-RDCM-SCM-RFA. For each module, all DTCs will be displayed. If none are present in a module, you will see "no more codes" on the ICP display.

There are two kinds of DTCs, "current" and "history," designated with a letter suffix, "C" or "H". A current code indicates a malfunction is present in the system whose module is displaying data. A history code indicates a problem existed sometime in the last 40 or 50 ignition cycles. When not accompanied by a current code of the same number, it's possible evidence of a previous problem, now solved, that was not removed by clearing codes. More likely it indicates an intermittent malfunction.

 

Thanks alot I'll see if that works for me.

Al