P2C06 code meaning
A Camshaft Profile Actuator Position Sensor A Range/Performance Bank 1
Powertrain system Generic code P2Cxx codes Check engine light
What P2C06 means
P2C06 deals with a feedback signal that is electrically intact but makes no sense. On GM's 2.7 L L3B, the ECM follows each shift of the intake profile actuator A on bank 1 through three Hall feedback states: extending once the reading falls below 55, extended below 45 and retracted, back at home, above 68. The code is logged when these states do not appear as expected after a command, or when the feedback reports pin movement although no shift was requested. It needs 4 faulty readings out of 5 with the engine running, supply above 11 V and no crank or camshaft sensor faults, and it is a Type A fault (19OBDG03D, 25OBDG03B). CARB names a single pin that fails to move as a failure the lift monitor must cover. A sticking actuator is more likely than wiring here.
P2C06 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2C06
- Check engine light on immediately
- Lift switching disabled, engine stays on one cam profile
- Possible ticking noise from the cylinder head
Common causes of P2C06
- Most likelyActuator pin sticking or slow because of wear or dirty oil
- PossibleWorn groove or sliding sleeve on the intake camshaft
- Less likelyHall feedback element in the actuator giving wrong values
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
A camshaft profile actuator pos sensor a b1Wiring harnessECM
What each part of P2C06 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| C | Area: hybrid propulsion. |
| 06 | The exact fault in that area. |
What to do next
- Note P2C06 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 P2C06
What does P2C06 mean?
P2C06 means "A Camshaft Profile Actuator Position Sensor A Range/Performance Bank 1". P2C06 deals with a feedback signal that is electrically intact but makes no sense. It is a generic code, so it means the same on every make.
Is it safe to drive with P2C06?
Drive gently and only to a workshop. With P2C06 the car can go into limp mode (reduced power) to protect itself.
Will P2C06 fail an emissions test?
Yes, it can. P2C06 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 P2C06 to fix?
Difficulty: medium. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P2C06 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.