🔧 FixIt
🟡

P0685 on HONDA ACCORD

Severity
Medium
NHTSA Reports
2
Most Affected
2007

What P0685 Means on Your HONDA ACCORD

Real HONDA ACCORD Owner Reports (Source: NHTSA Complaints Database)

"First of all i'm really surprised to find out that honda does not have a recall for the a pcm - ecm power relay. this should be a safety issue. basically while driving my car if i have the heat on the vehicle will turn off when i slow down or come to a stop."

— 2007 HONDA ACCORD owner • ELECTRICAL SYSTEM • Filed 11/19/2020

"Check engine light went on and off a few times, took it to autocheck and found a code. took it to dealer, they could not locate the code and claimed there is no issue they can find, come back when it happens again."

— 2007 HONDA ACCORD owner • SERVICE BRAKES, HYDRAULIC,ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE • Filed 02/25/2013

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P0685 on HONDA ACCORD

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2007
2

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P0685 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026