Conditions for Running the DTC
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
P018B
- DTC P018C, P018D, P0231, P0232, P023F, P0606, P0641, or P1255 is not set.
- Engine is running for greater than 5 s.
- Fuel pump enable circuit is commanded ON.
- Vehicle is not in a low fuel condition.
- The DTC runs continuously when the above conditions are met.
P018C or P018D
- The engine is cranking or running.
- The DTCs run continuously when the above condition is met.