TORQDEX // POWERTRAIN DTC
Crankshaft Position Sensor A Circuit Malfunction
A fault has been detected in the crankshaft position sensor A circuit.
00 // CODE DEFINITION
What P0335 means
P0335 means the control module is not receiving a valid crankshaft position signal from sensor A.
Because crankshaft position is critical for ignition and injection timing, this fault can cause stalling or a no-start.
01 // COMMON SYMPTOMS
What you may notice
02 // COMMON CAUSES
What can trigger P0335?
Crankshaft sensor fault
The sensor may fail internally or produce an unusable signal.
Harness fault
Open, shorted, or heat-damaged wiring can interrupt the signal.
Trigger wheel problem
Damage, excessive clearance, or mechanical movement can affect signal generation.
03 // DRIVEABILITY
Can I keep driving with P0335?
Continued driving is not recommended if the engine is stalling or losing the crankshaft-position signal intermittently. The engine may shut off unexpectedly and may not restart.
04 // DIAGNOSTIC ORDER
Start here
Check RPM while cranking
Scan-tool engine-speed data can help determine whether a crank signal is present.
Inspect wiring and connector
Check for oil contamination, heat damage, loose terminals, or broken wiring.
Test sensor signal
Use appropriate test equipment to evaluate sensor output while cranking.
Inspect the trigger system
Check sensor clearance and reluctor condition where accessible.
05 // COMMON REPAIR AREAS
Systems commonly involved
These are common areas associated with P0335. Testing should confirm the actual fault before parts are replaced.
Crankshaft sensor fault
The sensor may fail internally or produce an unusable signal.
Harness fault
Open, shorted, or heat-damaged wiring can interrupt the signal.
Trigger wheel problem
Damage, excessive clearance, or mechanical movement can affect signal generation.
06 // DIAGNOSTIC PRINCIPLE
Confirm the fault before replacing parts
P0335 identifies a condition detected by the vehicle control system. It does not automatically identify one failed component. Test the affected system before replacing parts.
07 // RELATED TORQDEX DIAGNOSTICS
Related diagnostic guides
Continue troubleshooting by symptom and system. These TorqDex guides cover common diagnostic paths associated with this trouble code.
08 // RELATED CODES