Free API
Help
2025 FORD F-150
3.5L V6 PowerBoost Hybrid•4WD•AUTOMATIC•hybrid•turbo
12 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor505Torque148Fluid10DTC1896Battery1Maintenance0Recalls12
P3475moderate severityPowertrain

EV/Hybrid Waste Heat Recovery System Fault

on 2025 Ford F-150 3.5L V6 PowerBoost Hybrid · 4WD

What this code means

The waste heat recovery system that captures heat from the motor/inverter to warm the battery or cabin is not functioning.

Symptoms

  • Slower battery warm-up in cold weather
  • Cabin heating less efficient
  • Increased energy consumption for heating
  • Range reduction in cold conditions
  • Waste heat valve indicator fault

Common causes

  • Heat recovery valve stuck
  • Coolant crossover valve failure
  • Control module fault
  • Coolant circuit air lock
  • Temperature sensor error in heat recovery loop

Diagnostic steps

  1. Check waste heat recovery valve positions
  2. Monitor coolant temperatures in recovery circuit
  3. Command valve positions via scan tool
  4. Bleed air from heat recovery coolant loop
  5. Test temperature sensors in recovery circuit

Repair notes

Replace waste heat recovery valve. Bleed air from coolant circuit. Repair any coolant leaks in the recovery loop.

🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITE
Shop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Powertrain codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 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
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2025 Ford F-150 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 Ford F-150 — $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 →