P274E code meaning
Transmission Fluid Temperature Sensor C Circuit Intermittent
Powertrain system Generic code P27xx codes Check engine light
What P274E means
P274E stands for an unsteady sensor C signal: short interruptions or spikes that recover before a permanent low or high fault can mature. No manufacturer publishes this code or its debounce logic. Comparable intermittent coverage exists for the main sensor, where Ford's 2012 transmission strategy lists P0714 next to the open, short and in-range checks. Because the signal returns to normal, the warning may come and go, and the stored freeze frame is often the best clue: note temperature, speed and road condition when it appeared. A terminal with poor contact pressure, a harness rubbing on the case or moisture in the connector are typical; replacing the sensor without checking the wiring rarely helps.
P274E at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 4 hours
- Clears after repairAfter a drive cycle
Symptoms of P274E
- Intermittent warning lamp
- Temperature C drops out briefly on the scan tool
Common causes of P274E
- Most likelyTerminal with weak contact pressure
- PossibleHarness rubbing on the transmission case
- Less likelyMoisture in the connector
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Trans fluid temp sensor cWiring harness
What each part of P274E 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. |
| 4E | The exact fault in that area. |
What to do next
- Note P274E 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 P274E
What does P274E mean?
P274E means "Transmission Fluid Temperature Sensor C Circuit Intermittent". P274E stands for an unsteady sensor C signal: short interruptions or spikes that recover before a permanent low or high fault can mature. It is a generic code, so it means the same on every make.
Is it safe to drive with P274E?
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 P274E fail an emissions test?
P274E is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P274E to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P274E 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.