Powertrain, generic (extended)

P2E33 Battery Charger A Module Forced Shutdown Voltage Low

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P2E33 reports that the voltage on the forced shutdown line of charger A sits below its valid band. What that means in practice depends on the logic, which no manufacturer publishes for this code. Shutdown lines are often built fail-safe, as in Watt & Well's EVCC charging controller, where a missing loop current counts as an emergency stop. With such logic a wire broken or shorted to ground looks like a permanent shutdown order, so charger A stays off even though nobody asked for it; the code then separates a wiring fault from a genuine request. Typical findings are a chafed wire touching the body, water in a connector or a pulled-out pin. Charger faults that stop charging fall under CARB's plug-in hybrid rule. High is P2E34, implausible behaviour P2E32, charger B low P2E3F.

Likely causes

Shutdown line chafed through and shorted to ground
Broken wire or backed-out pin in the shutdown circuit
Moisture or corrosion in the charger signal connector
Output stage of the commanding module stuck low

Symptoms

  • Charger A never starts charging
  • Charging aborts when the car or harness is moved
  • Charging system warning message

Repair estimate

DifficultyHardWorkshop job
Parts and labour€60–2,000
Time0.5–4 h

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

Parts involved

on board chargerwiring harness

Related codes

P2E32P2E34P2E3FP2E2D

References: law.cornell.edu, wattandwell.com.