Conditions for Running the DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
DTC P018B
- DTCs P018C, P018D, P0231, P0232, P023F, P0641, P1255, P129D or P12A6 are not set.
- Engine is running
- Fuel pressure is greater than 0 psi
- The DTC runs continuously when the condition above is met.
DTC P018C or P018D
- The engine is cranking or running.
- The DTCs run continuously when the condition above is met.