Conditions for Running the DTC
WARNING: This page is about a different car, the 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
P0638, P2100, P2101
- The ignition is ON.
- The ignition voltage is more than 7 volts.
- The system is not in the Battery Save mode.
- DTC P0638, P2100, P2101 run continuously when the above conditions are met.
P1551 and P2119
- The ignition is ON.
- The ignition voltage is more than 7 volts.
- The system is in the Battery Save mode.
- DTCs P1551 and P2119 run once when the above conditions are met.
P2176
- The ignition is ON.
- The ignition voltage is more than 7 volts.
- The system is not in the Battery Save mode.
- The engine is running.
- DTCs P0121, P0122, P0123, P0221, P0222, P0223 are not set.
- DTC P2176 run continuously when the above conditions are met.