The problem could be with:
* The crankshaft position sensor itself: It might be failing, dirty, or improperly installed.
* The sensor's wiring: There could be broken wires, shorts, or poor connections in the wiring harness leading to the sensor.
* The ECM: Though less common, a faulty ECM could also trigger this code.
Troubleshooting will typically involve visually inspecting the sensor and its wiring for damage, checking for continuity and proper resistance in the wiring, and potentially replacing the sensor as a first step. A mechanic might use a scan tool to monitor live data from the sensor to pinpoint the exact issue.
