P2C36 code meaning
Crankcase Pressure Sensor B Circuit Intermittent/Erratic
Powertrain system Generic code P2Cxx codes Check engine light
What P2C36 means
P2C36 covers a crankcase pressure sensor B signal that drops out briefly or jumps faster than real crankcase pressure can change, while staying mostly inside its electrical range. That pattern points to a contact that opens for moments, a wire chafing on the engine, moisture in the plug or a sensor failing internally. No manufacturer documents P2C36 publicly: Maserati's bulletin on the blow-by sensor lists only P2C33–P2C35 for sensor B, and Ford's gasoline summary has no erratic code for its sensor A either, whose counterpart would be P051E. The description therefore rests on CARB, which requires inputs used by monitors to be checked for circuit faults and plausibility. A shake test of the harness while watching live data is the usual way to find the cause.
P2C36 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2C36
- MIL that may come and go
- Erratic crankcase pressure value in live data
- Usually no driveability change
Common causes of P2C36
- Most likelyLoose or fretting contacts at the sensor or an intermediate connector
- PossibleWire rubbing on engine parts and shorting briefly
- PossibleMoisture or oil in the connector
- Less likelySensor with intermittent internal fault
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Crankcase pressure sensor bWiring harnessECM
What each part of P2C36 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. |
| 36 | The exact fault in that area. |
What to do next
- Note P2C36 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 P2C36
What does P2C36 mean?
P2C36 means "Crankcase Pressure Sensor B Circuit Intermittent/Erratic". P2C36 covers a crankcase pressure sensor B signal that drops out briefly or jumps faster than real crankcase pressure can change, while staying mostly inside its electrical range. It is a generic code, so it means the same on every make.
Is it safe to drive with P2C36?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2C36 fail an emissions test?
Yes, it can. P2C36 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 P2C36 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2C36 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.