P0335
CriticalCrankshaft Position Sensor A Circuit
Engine System
P0335 — Instant Answer
Crankshaft Position Sensor A Circuit
Severity: CRITICAL
Meaning: The ECM is not receiving a proper signal from the crankshaft position sensor. This sensor is critical for engine timing and fuel injection.
Safe to drive? NO if CEL is flashing. YES with caution if solid, but repair this week.
Estimated repair cost: $15 - $50
Most common causes:
- 1. Failed crankshaft position sensor (35-45% of cases)
- 2. Damaged reluctor ring (tone wheel) (10-25% of cases)
- 3. Wiring or connector issue (10-25% of cases)
- 4. Excessive crankshaft endplay (5-10% of cases)
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 Procedures for P0335
Crankshaft Position Sensor A Circuit Found 17 OEM service manual procedures.
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Crankshaft Position Sensor (2RZ-FE, 3RZ-FE) - Replacement
Showing 8 of 17 procedures
OEM Diagnostic Flowchart
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Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0335.
OEM Manual Evidence
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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
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Exact Repair Workflows
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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.
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Author & Review
Written by AllOEMManuals Editorial Team. Reviewed by ASE-certified technicians and updated with factory-reference checks for fitment-sensitive steps.
This guide was drafted with AI assistance and reviewed for accuracy by a human editor.
Last updated: 2026-05-07