Powertrain, generic (extended)

P2C0D A Camshaft Profile Actuator Position Sensor C Circuit Bank 1

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

Position sensor C is the third of the Hall feedback elements on the intake side of bank 1; on GM's L3B it sits in intake actuator 3 and is named intake Hall sensor 3. That engine has four intake and two exhaust profile actuators, so a fourth intake feedback exists beyond the J2012 letters and GM handles it with P30B0 to P30B3. P2C0D is the open-circuit check for sensor C: output on, at least 200 kilohms from signal to ground, four of five samples at over 11 V, key in crank or run, Type A with MIL on the first trip (19OBDG03D, 25OBDG03B). Both PIT5677 and its successor 21-NA-149 from GM list P2C0D for 2019 to 2021 L3B trucks with chafed engine harnesses. As long as sensor C reports nothing, the ECM blocks lift changes.

Likely causes

Harness rubbed through over the camshaft carrier, wire broken (GM L3B bulletins)
Connector on actuator 3 loose, damaged or corroded
Open circuit inside actuator 3 or its Hall element

Symptoms

  • Check engine light on in the first trip
  • No lift switching, no cylinder deactivation
  • Further codes, reduced power or no start if the harness is damaged

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–900
Time0.5–4 h

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

Parts involved

a camshaft profile actuator pos sensor c b1wiring harnessecm

Related codes

P2C05P2C09P2C0EP2C0FP2C10

References: gsi.ext.gm.com, gsi.ext.gm.com, gm-techlink.com, static.nhtsa.gov.