P0E58 code meaning
DC/DC Converter Temperature Sensor C Circuit
Powertrain system Generic code P0Exx codes Check engine light
What P0E58 means
P0E58 stands for a general circuit fault of the third temperature sensor in a DC/DC converter, after sensors A (P0C38 ff.) and B (P0C3D ff.). Which part of the converter sensor C watches is up to the maker. At Ford it is the inductor of the variable voltage converter, the boost stage of its full hybrids, but Ford uses only the plausibility code P0E59 for it. No manufacturer documents P0E58 publicly. The code is meant for a fault the controller can detect without being able to classify it as too low, too high or implausible, for example an unstable reference or supply. CARB requires circuit monitoring of hybrid input components. Without this reading the controller protects the converter by limiting its power, which can cut electric assist.
P0E58 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.5 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0E58
- Hybrid system warning
- Reduced electric assist or power
Common causes of P0E58
- PossibleSensor connection or wiring damaged or corroded
- PossibleTemperature sensor in the converter defective
- Less likelySensor reference or evaluation circuit in the converter faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Dcdc converter temp sensor cWiring harnessDcdc converter
What each part of P0E58 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 58 | The exact fault in that area. |
What to do next
- Note P0E58 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 P0E58
What does P0E58 mean?
P0E58 means "DC/DC Converter Temperature Sensor C Circuit". P0E58 stands for a general circuit fault of the third temperature sensor in a DC/DC converter, after sensors A (P0C38 ff.) and B (P0C3D ff.). It is a generic code, so it means the same on every make.
Is it safe to drive with P0E58?
Drive gently and only to a workshop. With P0E58 the car can go into limp mode (reduced power) to protect itself.
Will P0E58 fail an emissions test?
Yes, it can. P0E58 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 P0E58 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 5 hours of work. This is a job for a workshop.
Will P0E58 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.