P2E8A code meaning
Proximity Detection Circuit B High
What P2E8A means
P2E8A is the opposite of P2E89: the proximity line of circuit B sits above the accepted band. Because the evaluating controller usually pulls the pin up to a reference such as 5 V, as described for Watt & Well's EVCC, an open wire or a missing earth path reads high just like a short to a supply. For circuit A GM's Volt sets P0D59 above 4.8 V under the same conditions as the low test, charge door closed or moving out of Park, again Type A with MIL. Mitsubishi's 2023 Outlander PHEV logs P0D59-00 on a high charger connection signal and points to the harness between charger and PHEV-ECU or the PHEV-ECU itself. No manufacturer documents P2E8A. The usual result is a plug on inlet B that is never recognised, so charging there does not start.
P2E8A at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E8A
- Charging cable on inlet B is not detected
- Charging does not start on that inlet
- Warning lamp, depending on manufacturer the MIL
Common causes of P2E8A
- Most likelyBroken proximity wire or unplugged connector at inlet B
- PossibleMissing protective-earth path in inlet or cable
- Less likelyProximity line shorted to a supply voltage
- Less likelyEvaluating control unit faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Proximity detection bCharge inlet bWiring harness
What each part of P2E8A means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8A | The exact fault in that area. |
What to do next
- Note P2E8A 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 P2E8A
What does P2E8A mean?
P2E8A means "Proximity Detection Circuit B High". P2E8A is the opposite of P2E89: the proximity line of circuit B sits above the accepted band. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E8A?
P2E8A does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2E8A fail an emissions test?
P2E8A 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 P2E8A to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2E8A clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.