P035D - Understanding DTC P035D: Common Issues in 2015-2018 Honda Civic and Similar Models

Quick Answer

P035D means: P035D indicates a problem with the ignition coil 'D' circuit, affecting engine performance.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with P035D? Immediate attention is recommended to prevent further engine damage.

Common Questions

What does P035D mean and how does it affect my car?

P035D indicates a malfunction in the ignition coil circuit, specifically the 'D' coil, which can lead to engine misfires and poor performance. If not addressed, it can cause further engine damage, reduce fuel efficiency, and increase emissions.

What are the most common causes of P035D and how much does it cost to fix?

Common causes of P035D include a faulty ignition coil, damaged wiring, or ECM issues. Repair costs generally range from $150 to $300 for ignition coil replacement, while wiring repairs may cost between $100 and $200.

Can I drive my car with P035D or should I stop immediately?

While you may still drive your vehicle, it is not advisable to do so for long. Continuing to operate your car can lead to more severe engine problems and ultimately more expensive repairs. It’s best to get it diagnosed and fixed as soon as possible.

How can I diagnose P035D myself using GeekOBD APP?

To diagnose P035D using the GeekOBD APP, first connect the app to your vehicle’s OBD2 port. Use the app to scan for trouble codes and view freeze frame data. This information will help identify the conditions under which the code was triggered, guiding you in your next steps.

What vehicles are most commonly affected by P035D?

P035D is frequently reported in vehicles like the 2015-2018 Honda Civic, 2016-2018 Ford Focus, and 2014-2017 Chevrolet Malibu. Owners of these models are advised to monitor for symptoms of ignition coil issues.

How can I prevent P035D from happening again?

To prevent the recurrence of P035D, ensure regular maintenance checks on your ignition system, including periodic inspections of ignition coils and wiring. Keep your vehicle’s software updated by visiting the manufacturer for any known recalls or software updates.

What is P035D?

DTC P035D is a diagnostic trouble code that signifies a malfunction in the ignition coil 'D' circuit, typically related to the ignition system in your vehicle. This code can be triggered by a variety of issues, including a faulty ignition coil, damaged wiring, or problems with the engine control module (ECM). When this code is present, it indicates that the engine has detected an inconsistency in the operation of the fourth ignition coil, which can lead to poor engine performance, increased emissions, and potential engine stalling. For car owners, particularly those with models like the 2015-2018 Honda Civic, understanding this code is crucial, as it can lead to significant engine problems if not addressed promptly. Symptoms often include engine misfires, reduced fuel efficiency, and a persistent check engine light. Ignoring these issues can result in more extensive damage to the vehicle, so it’s important to diagnose and repair the underlying cause as soon as possible. If you’re seeing the P035D code, it’s time to take action for the health of your engine.

System: P - Powertrain (Engine, Transmission, Emissions)

Symptoms

Common symptoms when P035D is present:

  • The check engine light stays on constantly, indicating a potential issue that needs immediate diagnosis.
  • Engine hesitates during acceleration, which may feel like a delay or stumbling when trying to speed up.
  • Fuel economy decreased by 10-15%, noticeable in your monthly fuel expenses due to inefficient engine performance.
  • Rough idle when the engine is at a standstill, causing vibrations and discomfort while parked.
  • Unusual engine noises, such as popping or backfiring, that can occur due to misfires in the ignition system.

Possible Causes

Most common causes of P035D (ordered by frequency):

  1. The most common cause is a faulty ignition coil, occurring in about 60% of cases, which can lead to misfiring and decreased performance.
  2. Another cause can be damaged wiring or connectors to the ignition coil, which may result from wear and tear or exposure to heat.
  3. An ECM malfunction can also trigger this code, affecting how the ignition system operates, making it crucial to ensure that the engine control module is functioning correctly.
  4. Less common but serious is a significant engine misfire due to internal engine damage, which can lead to costly repairs if not addressed.
  5. A rare cause might be software issues within the ECM that require reprogramming or updates to function correctly.

P035D Repair Costs

Cost Breakdown by Repair Type

Ignition Coil Replacement

Replacing the faulty ignition coil with a new unit to restore proper ignition function.

  • Total: $150 - $300
  • Success rate: 95%
Wiring Repair

Repairing or replacing damaged wiring and connectors to ensure proper electrical flow.

  • Total: $100 - $200
  • Success rate: 90%
Money-Saving Tips for P035D
  • 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 P035D Diagnosis Process

Follow these systematic steps to accurately diagnose P035D. 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).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
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).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, focusing on the ignition coil and associated circuits (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, focusing on the ignition coil and associated circuits (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and monitor for any recurrence of the code (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and monitor for any recurrence of the code (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

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 2016 Honda Civic

Vehicle: 2016 Honda Civic, 45,000 miles

Problem: Customer reported a check engine light and poor acceleration.

Diagnosis: OBD2 scan revealed code P035D, indicating a faulty ignition coil. Visual inspection showed signs of wear on the ignition coil.

Solution: Replaced the faulty ignition coil and cleared the code. Performed a system function test to ensure proper operation.

Cost: $250 (Ignition coil: $200, labor: $50)

Result: Check engine light turned off, and the vehicle performed smoothly after the repair.

Case Study 2: Wiring Repair on 2017 Ford Focus

Vehicle: 2017 Ford Focus, 30,000 miles

Problem: Customer experienced rough idling and check engine light illumination.

Diagnosis: Diagnosis revealed P035D due to damaged wiring connecting the ignition coil. Inspection showed frayed wires.

Solution: Repaired the damaged wiring and re-secured all connectors. Cleared the code and tested the system.

Cost: $150 (Wiring repair: $100, labor: $50)

Result: Vehicle idled smoothly post-repair, with no check engine light reappearing.

Diagnose P035D

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: P035D
System: Powertrain (Engine, Transmission, Emissions)
Severity: HIGH
Category: Engine Codes