Conditions For Setting DTC
WARNING: This page is about a different car, the 2003 Saturn Vue and 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
This DTC will set if the TCM is not programmed, or if the Vehicle Identification Number (VIN) is not stored in the TCM after 255 ignition cycles. DTC P0602 is a type "C" DTC.