Back to 2021 Mazda Mazda3

2021 MAZDA MAZDA3

2.5L I4FWDAUTOMATICgas
1 active safety recall on this vehicle — view recalls
Repairs0Labor473Torque3657Fluid6DTC919Battery0Maintenance0Recalls1
P0047moderate severityPowertrain

Turbo/Supercharger Boost Control Solenoid Circuit Low

on 2021 Mazda Mazda3 2.5L I4 · FWD

What this code means

Low voltage detected in the boost control solenoid circuit.

Symptoms

  • Check Engine Light
  • No boost
  • Reduced power

Common causes

  • Short to ground
  • Faulty solenoid
  • Wiring damage

Diagnostic steps

  1. Test circuit voltage
  2. Check for shorts
  3. Test solenoid

Repair notes

Repair wiring or replace solenoid.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 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 →