P2335 — Ignition Coil "L" Secondary Circuit
powertrain (engine/transmission)
Is it safe to drive?
Drive with caution Drive with caution and avoid load. Ignition faults cause misfires that quickly overheat and destroy the catalytic converter; if the Check Engine Light flashes, stop and fix it first.
How to diagnose with an OBD scanner
- Read the code and freeze frame Connect an OBD2 scanner, confirm P2335 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the ignition system for damage, corrosion, chafing or poor contact.
- Subsystem check Swap the coil to another cylinder and see if the fault code follows it.
- Subsystem check Inspect spark plugs for wear, oil or carbon tracks and check plug gaps.
- Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2335 does not return.
Approximate repair cost
Repair cost depends on which component actually failed. Typical scenarios for P2335 (parts and labor, USD, independent shop rates): Replace spark plugs: $90–$250; Replace an ignition coil: $150–$380; Repair coil wiring or connector: $80–$250. Overall, fixing P2335 usually costs between $80 and $380. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Common questions
How do I diagnose P2335 myself?
Start with a scan: confirm P2335, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the ignition system, and verify the suspect component against live data before buying parts.
Will P2335 clear itself?
Sometimes P2335 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.
Is it safe to drive with P2335?
Drive with caution and avoid load. Ignition faults cause misfires that quickly overheat and destroy the catalytic converter; if the Check Engine Light flashes, stop and fix it first.
What does OBD2 code P2335 mean?
Ignition Coil "L" Secondary Circuit (P2335): a powertrain (engine/transmission) fault affecting the ignition system. Short, gentle driving to a shop is usually possible. Most often caused by failed ignition coil or coil pack, worn spark plugs or wrong plug gap, damaged coil wiring or connector.
How much does it cost to fix P2335?
Replace spark plugs — $90–$250; Replace an ignition coil — $150–$380; Repair coil wiring or connector — $80–$250. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.
What does P2335 mean?
P2335 is logged by the onboard diagnostics when the ignition system does not behave as expected. The official definition is “Ignition Coil "L" Secondary Circuit”. This is a powertrain (engine/transmission) category code.
This code does not appear from a single bad reading: the module must see the fault condition repeat under defined operating conditions before it turns on the warning light. The freeze frame captured with P2335 — engine load, rpm, temperature, speed — tells you exactly when the problem occurs, so reproduce those conditions when testing.
Common symptoms of P2335
- hard starting, especially in damp weather
- increased fuel consumption
- Check Engine Light on
- loss of power and jerking
- misfires under load or at idle
What causes P2335?
- failed ignition coil or coil pack
- faulty ignition control circuit in the ECM
- worn spark plugs or wrong plug gap
- moisture or oil in the spark plug wells
- damaged coil wiring or connector
How to diagnose P2335
- Connect an OBD2 scanner, confirm P2335 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Visually inspect the wiring harness and connectors related to the ignition system for damage, corrosion, chafing or poor contact.
- Swap the coil to another cylinder and see if the fault code follows it.
- Inspect spark plugs for wear, oil or carbon tracks and check plug gaps.
- Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2335 does not return.
How to fix P2335
Start with the cheapest and most common causes before replacing expensive parts:
- Replace spark plugs — $90–$250
- Replace an ignition coil — $150–$380
- Repair coil wiring or connector — $80–$250
How much does it cost to fix P2335?
Repair cost depends on which component actually failed. Typical scenarios for P2335 (parts and labor, USD, independent shop rates):
- Replace spark plugs: $90–$250
- Replace an ignition coil: $150–$380
- Repair coil wiring or connector: $80–$250
Overall, fixing P2335 usually costs between $80 and $380. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Can you drive with P2335?
Drive with caution and avoid load. Ignition faults cause misfires that quickly overheat and destroy the catalytic converter; if the Check Engine Light flashes, stop and fix it first.