The P0335 code indicates the Crankshaft Position Sensor A circuit is malfunctioning. In a 2003 Honda Pilot, this usually points to the CKP sensor, its wiring, or the engine control unit not receiving a correct crank-position signal.
Understanding this code involves knowing how the crankshaft position sensor works on the Pilot’s V6 engine, the symptoms you might see, and the diagnostic steps a technician will follow to confirm the issue.
What P0335 Means for the 2003 Honda Pilot
The P0335 code is a generic OBD-II code that Honda uses to flag a fault in the Crankshaft Position Sensor A circuit. The CKP sensor monitors the crankshaft’s rotation and feeds a timing signal to the PCM (engine control module) so it can time spark and fuel delivery. On the 2003 Pilot, the CKP sensor is typically located near the crankshaft pulley, and it uses a reluctor ring or Hall-effect element to generate a signal.
How the CKP sensor works on the Pilot
The CKP sensor provides a constant signal to the PCM that corresponds to crankshaft position and speed. When the signal is missing, erratic, or out of range, the PCM cannot accurately time ignition and fuel, triggering P0335.
Common Symptoms
The following signs are commonly associated with P0335 on a 2003 Honda Pilot. If you notice more than one of these, a diagnosis is warranted.
- Engine cranks but won’t start, or starts intermittently
- Rough idle or misfires, especially at low RPM
- Engine stalls while driving or after startup
- Check Engine Light (MIL) is illuminated
- Fuel consumption changes or performance irregularities
These symptoms can also be caused by other issues, so proper diagnostic steps are important to avoid unnecessary repairs.
Causes and Diagnostics
Diagnosing P0335 involves confirming the CKP signal and ruling out wiring and PCM issues. The following are common causes and the typical diagnostic approach.
- Faulty Crankshaft Position Sensor A
- Damaged, corroded, or loose CKP sensor wiring or connector
- Shorts to ground or open circuit in the CKP circuit
- Faulty PCM or incorrect 5V reference supply to the CKP sensor
Diagnostic steps usually include scanning for P0335 and related codes (like P0336, P0339), inspecting the CKP sensor and its connector for corrosion or damage, checking the wiring harness and continuity, testing the 5V reference and ground circuits, and, if needed, replacing the CKP sensor or repairing the wiring. In some cases, a PCM reflash or replacement may be necessary if the sensor and wiring check out but the fault persists.
Repair Steps and Ballpark Costs
If you need to replace or repair components related to P0335, here’s what to expect. Costs vary by region, shop, and whether you use OEM or aftermarket parts.
- Crankshaft Position Sensor replacement: Part typically $20–$120; labor about 0.5–1 hour
- Wiring/connector repair: Depending on damage, parts and labor can range from $50–$200
- PCM-related repair (less common): Could require replacement or reprogramming, often $400–$1,000 including labor
- Timing-related issues (reluctor ring or timing components if needed): Additional costs could apply
Always have a trusted technician diagnose comprehensively before replacing parts. Correctly identifying whether the CKP sensor, wiring, or the PCM is at fault helps avoid unnecessary replacements.
Safety and Driving Considerations
Because P0335 can cause hard starting or sudden stalling, driving a vehicle with an active CKP circuit fault is not advisable. If the engine stalls while driving, you may lose power steering and braking assist. If you experience repeated hard starts or stalling, arrange a tow to a repair facility rather than continuing to drive.
Summary
P0335 on a 2003 Honda Pilot signals a problem with the Crankshaft Position Sensor A circuit. The most common causes are a faulty CKP sensor, damaged wiring or connectors, or a PCM issue. Diagnostic steps focus on validating the CKP signal, inspecting wiring, and testing the sensor and ECU references. Replacement of the CKP sensor is a frequent fix, but wiring repairs or PCM concerns may be necessary in some cases. Expect typical CKP sensor parts costs to range from $20 to $120, with labor around 0.5–1 hour, though total job costs can vary widely based on the exact fault and local labor rates.