P0EE7 is the general circuit code for the second temperature sensor of the charging inlet. High-current inlets carry several sensors; the supplier Sailtran fits one PT1000 at the L1 pin and two independent PT1000 at DC+ and DC- of its CCS2 inlet, so A and B often stand for two different contacts. The code applies when the sensor B circuit is faulty in a way the module does not sort into low, high or implausible. No manufacturer documents P0EE7 on an official server. For sensor A, Mercedes lists P0D9900 as an electrical fault of the inlet contact sensor on the smart electric drive with 22 kW charger and traces it to loose low-voltage plugs at the charger (LI54.10-P-067823). CARB requires plug-in charger faults that stop or slow charging to be found. Sensor A is P0D99.
High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
Symptoms
- Charging refused or stopped
- Charge indicator shows a fault
Most likely causes
- Loose low-voltage connector between inlet and charger
- Damaged sensor wire in the inlet harness
- Failed sensor element B (usually means a new inlet)
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
What each character of P0EE7 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- E: Subsystem depends on the code range
- E7: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0EE7?
If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
What causes code P0EE7?
The most common causes are: loose low-voltage connector between inlet and charger; damaged sensor wire in the inlet harness; failed sensor element B (usually means a new inlet).
Related codes
- P0EE8Battery Charger Coupler Temperature Sensor B Circuit Range/Performance
- P0EE9Battery Charger Coupler Temperature Sensor B Circuit Low
- P0EEABattery Charger Coupler Temperature Sensor B Circuit High
- P0EEBBattery Charger Coupler Temperature Sensor B Circuit Intermittent/Erratic
- P0D99Battery Charger Coupler Temperature Sensor A Circuit
Sources
- sailtran.com: ccs2 200a250a dc charging socket
- static.nhtsa.gov: MC 10144078 9999
- law.cornell.edu: 13 CCR 1968.2
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.