Powertrain, generic (extended)

P2E8C Battery Charger B Charge Sequence Signal 1 Circuit High

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Charge sequence signals 1 and 2 belong to DC fast charging to CHAdeMO, used for example on the Nissan Leaf, the Mitsubishi i-MiEV and the Outlander PHEV. Signal 1 runs over connector pin 2: the station closes its switch d1 and applies 12 V to the line, which tells the car it is ready and starts the CAN dialogue. P2E8C means the vehicle sees this line high when it should not, for instance with no station connected or after the station has opened d1 once a session is over, or the level exceeds the allowed range. Likely reasons are a short to a 12 V source in the harness or inlet, or a faulty input stage. No manufacturer documents P2E8C publicly. The car can then no longer trust the start and stop handshake and usually refuses DC charging. The low counterpart is P2E8D.

Likely causes

Sequence signal 1 line shorted to a 12 V source
Moisture or debris in the DC inlet bridging pins
Faulty input stage in the evaluating control unit
Station switch d1 not opening at the end of a session

Symptoms

  • DC fast charging refused or ending with an error
  • AC charging continues to work
  • Charging fault message in the cluster

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–1,500
Time0.5–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

battery charger b charge seq signal 1charge portwiring harness

Related codes

P2E8DP2E8EP2E8FP2E87

References: ti.com, cache.industry.siemens.com, en.wikipedia.org, law.cornell.edu.