P0335
Crankshaft Position Sensor "A" Circuit Malfunction
Description
Crankshaft Position Sensor "A" Circuit Malfunction. This powertrain diagnostic trouble code covers the engine, the fuel and ignition systems, emission control and the transmission.
OBD Codes Details
Possible Causes
Worn spark plugs, failed ignition coil, faulty injector, low compression in a cylinder
Solution
Read misfire counters per cylinder, inspect plugs and coils, swap the coil and injector to a neighbouring cylinder, run a compression test
Symptoms
- Engine cranks but fails to start
- Engine stalls unexpectedly while driving
- Check engine light illuminated
- Intermittent loss of power or hesitation
- Engine may not restart after stalling
Diagnostic Recommendations
- Inspect crankshaft position sensor wiring and connector
- Test sensor air gap and mounting for proper installation
- Check sensor output signal with an oscilloscope or scan tool
- Inspect the reluctor/tone wheel for damage or debris
- Replace crankshaft position sensor if signal is missing or erratic
Repair Cost Estimate
- Crankshaft position sensor replacement: $100-300
- Wiring repair: $80-200
- Reluctor wheel repair/replacement: $150-500
- Diagnostic scan: $80-150
- Total diagnostic and repair: $150-900
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Fact-checking completed
Verified by:
Pavel Volkov
Created:
Information verified against official sources
Official Sources
Society of Automotive Engineers
Official OBD-II diagnostic trouble codes standard (SAE J2012)
Automotive engineering standards organization
International Organization for Standardization
International standard for vehicle diagnostic systems
International standards for automotive diagnostics
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