Free API
P0816low severityPowertrain

Downshift Switch Circuit

on 2020 Ford Explorer 3.0L V6 EcoBoost · AWD

What this code means

The PCM detected a fault in the downshift switch circuit used for manual gear selection. This affects the driver's ability to command downshifts in manual or semi-automatic modes.

Symptoms

  • Manual downshift not responding
  • Transmission stuck in gear
  • Warning light on

Common causes

  • Faulty downshift switch
  • Damaged wiring or connector
  • Corroded switch contacts
  • Faulty PCM/TCM

Diagnostic steps

  1. Scan for related codes
  2. Test downshift switch operation
  3. Inspect wiring and connectors
  4. Verify PCM input signal

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 2020 Ford Explorer 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 Explorer — $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 →