OBD-II code · Powertrain (generic, extended)

P2E8E Battery Charger B Charge Sequence Signal 2 Circuit High

The charge sequence signal 2 circuit of battery charger B reports voltage above the expected window. Charging handshake compromised.

Is it safe to drive with P2E8E?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelySignal wire shorted to B+
  • PossiblePull-down resistor open
  • Less likelyConnector pins corroded - high contact resistance

Symptoms

  • Charge status indicator shows fault
  • Charging may not start or interrupts
  • Slower-than-expected charge rate

Repair at a glance

Difficulty
Medium
DIY friendly
Best left to a mechanic
Typical labour
0.5–3 h
Emissions test
Usually unaffected
Parts involved
Battery Charger B Charge Seq Signal 2, Wiring Harness, Bms

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.