What causes the P0335 code?

Failed crank sensor; Faulty wiring harness connecting the respective sensor; Aging electrical connections or corrosion due to environmental elements specific to ford vehicles.

How to fix the P0335 code?

Conduct a complete OBD2 scan. Inspect the engine bay for loose connections related to Crankshaft Position Sensor A Circuit Malfunction. Replace failed components with genuine OEM ford parts to ensure the fault does not return. Clear the ECU memory afterwards.

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P0335

FORD P0335 Crankshaft Position Sensor A Circuit Malfunction

The P0335 diagnostic trouble code indicates an issue with the Crankshaft Position Sensor A Circuit Malfunction. Very common on Ford engines due to failed crank sensor. Found frequently across ford models utilizing EcoBoost, TDCi, Duratec engines, this code will illuminate the Check Engine Light and may cause the vehicle to enter Limp Mode to protect the mechanical components.

Brand

Ford

Fault Code

P0335

Severity

🔴 High

Models

Focus, Fiesta, Mondeo, S-Max, C-Max, Kuga, Ranger

🛠️ Diagnostic Overview

Difficulty Level

🛠️🛠️🛠️ Hard (Advanced)

Estimated Time

⏱️ 3-6 Hours

🧰 Required Tools

✓ Digital Multimeter
✓ OBD2 Diagnostic Scanner
✓ Socket Wrench & Hand Tools
✓ Electrical Contact Cleaner Spray

⚠️ Possible Causes

• Failed crank sensor
• Faulty wiring harness connecting the respective sensor
• Aging electrical connections or corrosion due to environmental elements specific to ford vehicles.

🔧 Recommended Fixes

→ Conduct a complete OBD2 scan. Inspect the engine bay for loose connections related to Crankshaft Position Sensor A Circuit Malfunction. Replace failed components with genuine OEM ford parts to ensure the fault does not return. Clear the ECU memory afterwards.

🔴 This is a high-priority fault. Have the vehicle inspected by a qualified technician as soon as possible.

🚗 Commonly Affected Vehicles