Powertrain, shared range

P3475 Cylinder 10 Deactivation/Intake Valve Control Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P3475 points to a short to ground on the circuit that controls deactivation or the intake valve of cylinder 10. No manufacturer documents this code publicly; J2012 reserves the codes for cylinders 9 to 12 for engines with more than eight cylinders. The Lamborghini Huracán's V10 runs on five cylinders at light load and the Aventador V12 on six below 135 km/h, yet neither maker publishes code-level diagnostics, and Audi's sister V10 manages without valve actuators. For a sense of the test, GM's eight-cylinder version of the low check needs below 0.5 ohm to ground while the output is off, sampled every 250 ms. Check the wire to cylinder 10 for chafing first, then the actuator itself. P3473 handles an open line, P3476 a short to voltage, P3479 the exhaust counterpart.

Likely causes

Cylinder 10 control wire grounded through chafing
Actuator of cylinder 10 shorted internally
Water in the actuator connector
Defective control module output stage

Symptoms

  • Check engine lamp on
  • Reduced-cylinder mode unavailable
  • Possible misfire on cylinder 10

Repair estimate

DifficultyMediumDIY possible
Parts and labour€60–900
Time0.5–4 h

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

Parts involved

cylinder deactivation solenoidwiring harnessecm

Related codes

P3473P3474P3476P3479P0310P3400

References: law.cornell.edu, gsi.ext.gm.com, pistonheads.com, newatlas.com.