Free API
P0638high severityPowertrain

Throttle Actuator Control Range/Performance (Bank 1)

on 2017 Maserati Levante 3.0L V6 Twin Turbo · AWD

What this code means

The PCM detected that the throttle actuator is not responding within the expected range. This can cause reduced power and limp mode.

Symptoms

  • Reduced engine power
  • Check engine light on
  • Erratic or limited throttle response

Common causes

  • Faulty throttle body/actuator
  • Dirty throttle plate
  • Damaged throttle control wiring
  • Faulty PCM

Diagnostic steps

  1. Scan throttle position data
  2. Inspect and clean throttle body
  3. Test throttle actuator motor and wiring
  4. Perform throttle relearn or replace throttle body

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
🔓 LIBERATED FOREVER
The 2017 Maserati Levante 3.0L V6 Twin Turbo repair data is free for every DIYer and shop on earth, permanently, because michael gonzales, texas paid $99 to unlock it.
Mitchell1 charges $169/mo for this. ALLDATAdiy charges $30/yr per vehicle. Open Labor Project is free permanently, because of community sponsors like michael.
Free another vehicle →
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 →