Conditions for Running the DTC
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
C1242
- The system voltage is greater than 8.0 volts.
- The system relay is ON.
- The pump motor is commanded OFF.
C1243
- The pump motor is ON for at least 0.3 seconds.
- The system relay is ON.