Quick Answer
P035C means: P035C indicates a malfunction in the ignition coil 'C' circuit.
Can I drive with P035C? Address this issue immediately to avoid further engine complications.
Common Questions
What does P035C mean and how does it affect my car?
The P035C code signifies a malfunction in the ignition coil 'C'. This can lead to engine misfires, rough running, and reduced fuel efficiency. If left unchecked, it could result in more serious engine problems down the line.
What are the most common causes of P035C and how much does it cost to fix?
Common causes include a faulty ignition coil, damaged wiring, or a malfunctioning ECM. Repair costs typically range from $100 to $300, depending on the nature of the issue and parts needed.
Can I drive my car with P035C or should I stop immediately?
It's not advisable to drive with this code, as it can lead to poor engine performance and potential damage. If you experience severe symptoms like stalling, it's best to stop and diagnose the issue.
How can I diagnose P035C myself using GeekOBD APP?
Using the GeekOBD APP, you can perform a diagnostic scan to retrieve the P035C code and other related codes. Check the freeze frame data for engine conditions when the code was triggered, and inspect the ignition coil circuit.
What vehicles are most commonly affected by P035C?
Vehicles such as the 2015-2018 Honda Civic and some Ford models like the Fusion and Escape are commonly affected by this code due to similar ignition system designs.
How can I prevent P035C from happening again?
Regular maintenance, including checking and replacing ignition components at recommended intervals, can help prevent P035C. Additionally, keeping the engine clean and addressing leaks promptly will reduce risks.
What is P035C?
DTC P035C indicates an issue with the ignition coil 'C' primary and secondary circuit. This code is commonly found in various vehicles, notably in 2015-2018 Honda Civics and certain Ford models like the Fusion and Escape. When this code is triggered, it usually means that the Engine Control Module (ECM) has detected a malfunction in the ignition coil circuit for cylinder 'C'. This can happen due to various reasons such as a faulty ignition coil, damaged wiring, or a poor connection. Ignition coils are crucial as they transform the battery's low voltage into the high voltage needed to ignite the fuel-air mixture in the cylinders. If the ignition coil 'C' is malfunctioning, you may experience rough engine performance, misfires, or even complete engine failure if not addressed promptly. Ignoring this code can lead to decreased fuel efficiency and increased emissions, as the engine struggles to operate efficiently. Therefore, understanding P035C is vital for maintaining optimal vehicle performance and ensuring a smooth driving experience.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P035C is present:
- Check engine light remains illuminated, indicating an ongoing issue that needs attention.
- The engine may hesitate or misfire during acceleration, causing a noticeable drop in power.
- Fuel economy can decrease by 10-15%, leading to more frequent visits to the gas station.
- Unusual engine noises such as sputtering or popping may occur, especially under load.
- Rough idle experienced at stoplights or when the vehicle is stationary.
Possible Causes
Most common causes of P035C (ordered by frequency):
- The most common cause of P035C, accounting for about 60%, is a faulty ignition coil 'C' that requires replacement.
- Another common cause (25%) is damaged wiring or connectors in the ignition coil circuit, which can lead to intermittent issues.
- A less frequent cause (10%) is a malfunctioning Engine Control Module (ECM) that fails to send proper signals to the ignition coil.
- A rare but serious cause includes carbon buildup in the cylinder, which can lead to severe engine damage if not addressed.
- Another possible cause is water damage from leaks in the engine compartment affecting the ignition system.
P035C Repair Costs
Cost Breakdown by Repair Type
Ignition Coil Replacement
Replacing the faulty ignition coil 'C' with a new OEM part.
- Total: $150 - $300
- Success rate: 95%
Wiring Repair
Repairing or replacing damaged wiring or connectors in the ignition coil circuit.
- Total: $100 - $200
- Success rate: 85%
Money-Saving Tips for P035C
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional P035C Diagnosis Process
Follow these systematic steps to accurately diagnose P035C. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter to test the resistance of the ignition coil and voltage at the connector (20-30 minutes)
Step 3: Component testing - Use a multimeter to test the resistance of the ignition coil and voltage at the connector (20-30 minutes).
Step 4: Step 4: System function test - After repairs, verify proper operation by clearing codes and checking for reoccurrence (10-15 minutes)
Step 4: System function test - After repairs, verify proper operation by clearing codes and checking for reoccurrence (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair is successful (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair is successful (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Ignition Coil Replacement in 2017 Honda Civic
Vehicle: 2017 Honda Civic, 45,000 miles
Problem: Customer reported check engine light and rough engine performance.
Diagnosis: Scanned for codes and found P035C. Inspected ignition coil and wiring.
Solution: Replaced the faulty ignition coil 'C' and cleared the codes.
Cost: $220 (including parts and labor)
Result: Customer reported smooth engine performance and improved fuel economy post-repair.
Case Study 2: Wiring Repair in 2016 Ford Fusion
Vehicle: 2016 Ford Fusion, 60,000 miles
Problem: Check engine light on with symptoms of misfiring.
Diagnosis: P035C detected during scan. Wiring inspection revealed a damaged connector.
Solution: Repaired the damaged wiring and replaced the connector.
Cost: $180 (specific cost breakdown: $80 for repairs, $100 for labor)
Result: Resolved misfiring issues and restored normal engine function.