P0335
CriticalCrankshaft Position Sensor A Circuit
Engine System
What Does P0335 Mean?
The ECM is not receiving a proper signal from the crankshaft position sensor. This sensor is critical for engine timing and fuel injection.
Common Fix
Replace crankshaft position sensor
Estimated Cost (DIY)
$15 - $50
Symptoms
- ⚠️No start or intermittent no-start
- ⚠️Engine stalls while driving
- ⚠️Tachometer drops to zero intermittently
- ⚠️Check engine light
Related Symptoms
Common Causes
How to Diagnose P0335
- 1Check sensor connector for corrosion
- 2Test sensor resistance and AC voltage output while cranking
- 3Inspect reluctor ring for damage through sensor hole
- 4Check wiring continuity
OEM Diagnostic Flowchart
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Read live data and freeze frame for P0335 to pinpoint the cause before buying parts.
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Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0335.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali AWD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...
Related Symptoms
Browse →No-crank and no-start complaints usually resolve into battery, starter, alternator, crank sensor, or fuel-delivery diagnosis.
A check-engine light is a graph entry point into code pages, symptom-specific diagnosis, and the exact repair categories most often associated with those failures.
Exact Vehicle Hubs
Browse →Open the exact vehicle hub for a repair workflow commonly associated with P0335.
Open the exact vehicle hub for a repair workflow commonly associated with P0335.
Open the exact vehicle hub for a repair workflow commonly associated with P0335.
Open the exact vehicle hub grounded by OEM manual evidence related to P0335.
Open the exact vehicle hub grounded by OEM manual evidence related to P0335.
Open the exact vehicle hub grounded by OEM manual evidence related to P0335.
Exact Repair Workflows
Browse →Open the exact repair flow most commonly associated with P0335 on this vehicle.
Open the exact repair flow most commonly associated with P0335 on this vehicle.
Open the exact repair flow most commonly associated with P0335 on this vehicle.
Open the exact repair flow most commonly associated with P0335 on this vehicle.
Open the exact repair flow most commonly associated with P0335 on this vehicle.
Open the exact repair flow most commonly associated with P0335 on this vehicle.
Related Codes
The crank sensor signal is irregular or intermittent. The ECM can read the sensor but the signal quality is poor.
The crankshaft and intake camshaft positions are not synchronized on bank 1. This indicates a timing problem that can cause rough running or no-start conditions.
No signal from the camshaft position sensor on bank 1. Needed for sequential fuel injection and ignition timing.
Frequently Asked Questions
- Can a bad crank sensor cause a no-start?
- Yes — the crankshaft position sensor is essential. Without it, the ECM cannot fire the spark plugs or injectors at the right time.
- How do crank sensors fail?
- Heat is the #1 killer. The sensor works fine cold but fails when hot, causing intermittent stalling or no-starts.
Related Repair Guides
If your vehicle has triggered P0335, these DIY repair guides may help: