Free API
1.5L I4 TurboFWDCVTgasturbo
6 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
P0480high severityPowertrain

Cooling Fan 1 Control Circuit Malfunction

on 2019 Honda Accord 1.5L I4 Turbo · FWD

What this code means

The ECM has detected a fault in the cooling fan 1 control circuit. The fan may not run when needed, risking engine overheating.

Symptoms

  • Engine overheating
  • Cooling fan not running
  • Check engine light on

Common causes

  • Faulty cooling fan relay
  • Damaged fan control wiring
  • Failed cooling fan motor
  • ECM fan driver circuit fault

Diagnostic steps

  1. Check fan relay and fuse
  2. Command fan on with scan tool
  3. Inspect fan control wiring
  4. Test fan motor and replace as needed

Other Powertrain codes on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
⚠ STILL BEHIND THE PAYWALL
The 2019 Honda Accord repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Honda Accord — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →