P2741 code meaning
Transmission Fluid Temperature Sensor B Circuit Range/Performance
Powertrain system Generic code P27xx codes Check engine light
What P2741 means
P2741 flags a sensor B signal that is electrically intact but physically impossible or inconsistent. The clearest published test is a rate check: GM's 2023/24 dual-clutch module calls the cooler-outlet reading faulty when its filtered gradient exceeds 700 °C per second, confirmed over five samples, as a Type B code (MIL after two trips). Mitsubishi's Twin Clutch SST in the 2009 Lancer uses a jump of 10 °C or more within 80 ms, lasting 400 ms; there the sensor sits in the transaxle-mounted control unit, so a returning code means replacing the transaxle. Ford lists P2741 as the consistency check of the TR9070 cooler-out sensor. Unlike P2742/P2743 the voltage stays in range; a loose pin or sensor drift is typical.
P2741 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 6 hours
- Clears after repairAfter a drive cycle
Symptoms of P2741
- Warning lamp after repeated detection
- Fluid temperature B jumps on the scan tool
- Temperature-dependent clutch or cooler control restricted
Common causes of P2741
- Most likelyContact resistance or loose pin causing signal jumps
- PossibleSensor B thermistor drifting or responding erratically
- Less likelyFault in a control unit with built-in sensor (e.g. Mitsubishi TC-SST)
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 b
What each part of P2741 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. |
| 41 | The exact fault in that area. |
What to do next
- Note P2741 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 P2741
What does P2741 mean?
P2741 means "Transmission Fluid Temperature Sensor B Circuit Range/Performance". P2741 flags a sensor B signal that is electrically intact but physically impossible or inconsistent. It is a generic code, so it means the same on every make.
Is it safe to drive with P2741?
Drive gently and only to a workshop. With P2741 the car can go into limp mode (reduced power) to protect itself.
Will P2741 fail an emissions test?
P2741 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 P2741 to fix?
Difficulty: hard. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P2741 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.