2007 Dodge Durango 5.7 Hemi P0335 Crankshaft Position Sensor: Diagnosis and Fix Guide
I own a 2007 Dodge Durango with the 5.7L Hemi engine. While driving, the truck suddenly acted erratically—displaying a red lightning bolt warning symbol—and then shut down completely. A diagnostic check revealed code P0335, indicating a crankshaft position sensor issue. I replaced the crankshaft sensor, but afterward, the vehicle still wouldn't start and a new error code appeared: low voltage. As a precaution, I also replaced the camshaft position sensor. Despite these efforts, the truck remains unstartable, and now I'm receiving a 'crankshaft sensor module A' fault code. I'm currently stuck and would appreciate any guidance on how to proceed. The P0335 code does not necessarily mean a faulty sensor—it may indicate a circuit issue rather than a failed component. Possible causes include: - 5-Volt Supply Circuit Shorted to Voltage or Ground - 5-Volt Supply Circuit Open - Crankshaft Position Sensor Signal Circuit Open or Shorted - Ground Circuit for the Sensor (K900) - Wiring issues between the sensor and PCM I'm wondering if my scan tool reads all stored codes and provides live data. If not, I may be missing critical diagnostic clues. Additionally, I've tested the battery and alternator—both appear functional—but I want to confirm whether there could be a deeper electrical or wiring problem. Any advice on next steps would be greatly appreciated.
The red lightning bolt warning is often associated with throttle control issues, such as fly-by-wire systems in vehicles like the 2007 Dodge Durango. This could indicate a separate issue beyond just the P0335 code. Important note: The P0335 code does not always point to a faulty sensor—it may reflect a circuit problem. Always check for underlying wiring faults or power supply issues. Possible causes: - 5-Volt Supply Circuit Shorted to Voltage or Ground - 5-Volt Supply Circuit Open - Crankshaft Position Sensor Signal Circuit Open or Shorted - Ground Circuit (K900) failure - Wiring between sensor and PCM Ensure your OBD2 scanner can read all stored codes and display live data. Missing real-time signals may lead to misdiagnosis. Also, verify that the battery is fully charged and connections are secure. A weak or failing alternator could contribute to intermittent issues. If possible, have a professional test the battery and charging system at a local shop before considering further repairs.