Conditions for Running the DTC
- Before the engine control module (ECM) can report DTC P2636 failed, DTCs P0462, P0463, P2067, and P2068 must run and pass.
- The ignition voltage is between 10-18 volts.
- The engine speed is greater than 240 RPM.
- DTC P2636 runs continuously once the above conditions exist for more than 4 minutes.