P267F code meaning
Control Module Internal Temperature Sensor A Circuit Intermittent/Erratic
Powertrain system Generic code P26xx codes Check engine light
What P267F means
Many control modules carry a temperature sensor on their own circuit board to protect output stages and, in transmission units, to back up fluid temperature. P267F adds an intermittent or erratic variant to the established family P0666 to P0669: the reading flickers, jumps or drops out briefly instead of being permanently too low, too high or implausible. Mercedes-Benz lists P267F00 as a temperature sensor fault of the control unit among the codes covered by its Intelligent Predictive Repair diagnosis for the 724.1 dual-clutch gearbox (bulletin LI27.00-P-077141, 2025), next to P0666 to P0669 and P0634. No thresholds are published. Since the sensor sits inside the module, repair usually means replacing or reprogramming that module.
P267F at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P267F
- Check engine or transmission warning light
- Harsh or delayed shifts if the module uses substitute values
- Often no noticeable symptom
Common causes of P267F
- Most likelyInternal defect of the control module or its temperature sensor
- PossibleUnstable module supply or ground causing erratic readings
- Less likelyModule software misinterpreting the sensor signal
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Control moduleControl module internal temperature sensor
What each part of P267F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6 | Area: computer (engine control module) and output circuits. |
| 7F | The exact fault in that area. |
What to do next
- Note P267F 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 P267F
What does P267F mean?
P267F means "Control Module Internal Temperature Sensor A Circuit Intermittent/Erratic". Many control modules carry a temperature sensor on their own circuit board to protect output stages and, in transmission units, to back up fluid temperature. It is a generic code, so it means the same on every make.
Is it safe to drive with P267F?
Drive gently and only to a workshop. With P267F the car can go into limp mode (reduced power) to protect itself.
Will P267F fail an emissions test?
Yes, it can. P267F 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 P267F to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P267F 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.