Applicable Systems
Civic
Accord
CR-V
Pilot
Odyssey
Symptoms
The Honda powertrain control module has detected a manufacturer-specific ignition system or misfire fault. The check engine light is on. DTC P3025 is stored.
Possible Causes
- Manufacturer-specific ignition system or misfire component failure
- Wiring or connector fault in the affected circuit
- Control module software calibration issue
- Sensor or actuator out of specification
Troubleshooting Steps
- Step 1: Connect an OBD-II scanner and read DTCs to confirm P3025
DTC P3025 present with freeze frame data - Step 2: Inspect wiring and connectors in the affected circuit for damage, corrosion, or loose pins
Wiring intact, connectors clean and seated - Step 3: Perform component-level testing per manufacturer service manual
Component values within spec or component confirmed faulty - Step 4: Repair or replace the faulty component, clear DTC, and verify no return
DTC cleared and does not return after a road test
How to Reset
Clear the DTC after repair using a diagnostic scanner. The code clears automatically if the fault is not detected for 3 consecutive drive cycles.
Common Replacement Parts
- varies: Replace the confirmed faulty ignition system or misfire component (Confirm part number via VIN at a Honda dealership)
Frequently Asked Questions
- Q: What does P3025 mean?
This manufacturer-specific DTC indicates a powertrain - ignition system fault. Refer to the vehicle's service manual for the exact diagnostic procedure.
- Q: Can I drive with P3025?
Limited driving is possible, but the affected system may not operate correctly. Have the vehicle diagnosed promptly to prevent potential damage.
Comments (0)
Share your experience to help others facing the same problem.
Leave a Comment
Source: SAE J2012 Honda Manufacturer-Specific Supplemental DTC
Category: OBD-II
Published: 2026-10-07
No comments yet. Be the first to share your experience!