P006C code meaning
MAP - Turbocharger/Supercharger Inlet Pressure Correlation
Powertrain system Generic code P00xx codes Check engine light
What P006C means
On turbocharged or supercharged engines the control module compares manifold pressure with the pressure measured upstream of the throttle, for example at idle or with the throttle wide open, where the two must lie close together. P006C is set when the difference exceeds a threshold. Manufacturers interpret "inlet pressure" differently: some mean boost pressure upstream of the throttle, others the pressure at the compressor inlet. Typical causes are a leak in the charge-air path or a faulty pressure sensor. Each sensor can be electrically fine on its own; regulations require such plausibility checks for input sensors with a code of their own.
P006C at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 1.5 hours
- Clears after repairAfter a drive cycle
Symptoms of P006C
- Check engine light on
- Reduced power possible
- Hissing from a charge-air leak
Common causes of P006C
- Most likelyLeak or disconnected hose in the charge-air path
- PossibleBoost or inlet pressure sensor faulty
- PossibleManifold pressure sensor faulty
- Less likelyThrottle body fault
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Manifold absolute pressure sensorBoost pressure sensorCharge air ductsThrottle body
What each part of P006C means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 0 | Area: fuel and air metering and auxiliary emission controls. |
| 6C | The exact fault in that area. |
What to do next
- Note P006C 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 P006C
What does P006C mean?
P006C means "MAP - Turbocharger/Supercharger Inlet Pressure Correlation". On turbocharged or supercharged engines the control module compares manifold pressure with the pressure measured upstream of the throttle, for example at idle or with the throttle wide open, where the two must lie close together. It is a generic code, so it means the same on every make.
Is it safe to drive with P006C?
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 P006C fail an emissions test?
Yes, it can. P006C 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 P006C to fix?
Difficulty: medium. A typical repair takes 0.5 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P006C clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.