P2564 code meaning
Turbocharger Boost Control Position Sensor A Circuit Low
Powertrain system Generic code P25xx codes Check engine light
What P2564 means
P2564 is stored when the voltage from the boost actuator position sensor stays below the lowest value a working sensor can deliver, which usually points to a short to ground or a lost reference supply. GM's 2009 Duramax table uses 0.277 V (5.5 %, vanes fully open) held for 1 s once the engine has run 3 s, Type B. Ford's 2023 diesel OBD summary checks the signal continuously against 0.15 V over 2 s, and VW's 2014 Passat book applies the same 0.15 V limit on the 2.0 L TDI and calls it a short to ground. FCA bulletin 09-003-16 for the 2015-2016 Jeep Renegade 1.6 L sold in EMEA lists P2564 with P2565 and replaces the turbocharger. P2565 is the high-side counterpart, P2563 a position error with a usable signal. Expect reduced power.
P2564 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2564
- Noticeable loss of power or limp mode
- Check engine light on
- Other sensors on the same 5 V supply may report faults too
Common causes of P2564
- Most likelySignal wire chafed through and touching ground near the turbocharger
- Possible5 V reference supply to the sensor missing or shorted
- PossibleFailed position sensor or vane actuator
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Turbo actuator position sensor aSensor wiring
What each part of P2564 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 5 | Area: vehicle speed, idle control and auxiliary inputs. |
| 64 | The exact fault in that area. |
What to do next
- Note P2564 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2564
What does P2564 mean?
P2564 means "Turbocharger Boost Control Position Sensor A Circuit Low". P2564 is stored when the voltage from the boost actuator position sensor stays below the lowest value a working sensor can deliver, which usually points to a short to ground or a lost reference supply. It is a generic code, so it means the same on every make.
Is it safe to drive with P2564?
Drive gently and only to a workshop. With P2564 the car can go into limp mode (reduced power) to protect itself.
Will P2564 fail an emissions test?
Yes, it can. P2564 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2564 to fix?
Difficulty: medium. A typical repair takes 0.5 to 5 hours of work. This is a job for a workshop.
Will P2564 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.