Powertrain, shared range

P3467 Cylinder 9 Deactivation/Intake Valve Control Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

With P3467 the control line of the cylinder 9 deactivation or intake valve actuator reads too low, which usually means it is touching ground. No manufacturer documents this code publicly; J2012 reserves the codes for cylinders 9 to 12 for engines with more than eight cylinders. Twelve-cylinder engines with cylinder shut-off do exist, for instance Mercedes' M137 and Lamborghini's Aventador V12 introduced in 2012, but no published diagnostic list connects this number to them. GM's matching test on its V8 engines looks for less than 0.5 ohm to ground with the driver switched off and only runs above 11 V and 425 rpm. On a low-side driven solenoid, a ground fault can keep the coil energised, so the cylinder may drop out when it should fire. Siblings: P3465 open circuit, P3468 short to voltage.

Likely causes

Cylinder 9 control wire shorted to ground
Internal short in the cylinder 9 solenoid
Moisture in the solenoid connector
Faulty driver in the engine control module

Symptoms

  • Check engine lamp on
  • Cylinder deactivation disabled
  • Possible misfire on cylinder 9 if the actuator stays energised

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

P3465P3466P3468P3471P3497P0309

References: law.cornell.edu, gsi.ext.gm.com, newatlas.com, en.wikipedia.org.