P27C5 code meaning
Pressure Control Solenoid P Control Circuit/Open
Powertrain system Generic code P27xx codes Check engine light
What P27C5 means
P27C5 reports an open control circuit on solenoid P. GM's Corvette dual-clutch table 23OBDG07 tests synchronizer actuation valve 3 for this while its low-side driver (a TLE8242 chip) is off: an intact coil pulls the sense pin up towards battery voltage, whereas without a load the driver manages to hold it in a window of about 1.7 to 3.0 V. If that persists for 150 ms after the output has been off for over 5 ms, the code sets as Type A, with battery voltage 8.75-18 V and no P0882/P0883 present; 24OBDG07 retains it. Ford's 2024 table lists open load of SPV3 on the TR9070 as P27C5. Look for a broken wire, an unplugged connector or an open coil.
P27C5 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor1 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P27C5
- MIL on immediately
- Shifts on rods 3 and 4 in A-to-B direction not possible
- Limp mode with restricted gears
Common causes of P27C5
- Most likelyOpen winding in solenoid P
- PossibleConnector not latched or pin pushed back
- PossibleBroken control wire between TCM and solenoid
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoid pWiring harness
What each part of P27C5 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 7 | Area: transmission. |
| C5 | The exact fault in that area. |
What to do next
- Note P27C5 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 P27C5
What does P27C5 mean?
P27C5 means "Pressure Control Solenoid P Control Circuit/Open". P27C5 reports an open control circuit on solenoid P. It is a generic code, so it means the same on every make.
Is it safe to drive with P27C5?
Drive gently and only to a workshop. With P27C5 the car can go into limp mode (reduced power) to protect itself.
Will P27C5 fail an emissions test?
Yes, it can. P27C5 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 P27C5 to fix?
Difficulty: medium. A typical repair takes 1 to 4 hours of work. This is a job for a workshop.
Will P27C5 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.