Circuit/System Verification

Start the engine, observe the DTC information with a scan tool. DTC P1321 should not set.
Move related harnesses/connectors of the CKP sensor and verify the engine does not stumble, stall, or change engine speed.
If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.