Powertrain, generic (extended)

P2564 Turbocharger Boost Control Position Sensor A Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Signal wire chafed through and touching ground near the turbocharger
5 V reference supply to the sensor missing or shorted
Failed position sensor or vane actuator

Symptoms

  • Noticeable loss of power or limp mode
  • Check engine light on
  • Other sensors on the same 5 V supply may report faults too

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€40–1,800
Time0.5–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

turbo actuator position sensor asensor wiring

Related codes

P2562P2563P2565P2566P003A

References: gsi.ext.gm.com, fordservicecontent.com, static.nhtsa.gov, static.nhtsa.gov.