Powertrain, generic

P0E61 Battery Charger A Enable Circuit/Open

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0E61 means the 12 V enable line that wakes or permits the on-board charger has a circuit fault, most often an open. GM documents it codegenau. In the 2016 Volt the VICM watches this charger enable circuit; in the 2019 hybrid tables the HPC2 module does so. The test reads a fault flag reported by the driver hardware and runs when system voltage is at least 10.2 V; 30 failed samples out of 40, taken every 25 ms, set the code as Type B, so the MIL lights after two trips with the fault. GM also uses P0E61 as a blocking condition: while it is active, the high-voltage battery heater test is not run. CARB's charger rule for plug-in hybrids covers exactly such failures. With no enable signal the charger stays off and plug-in charging fails.

Likely causes

Enable wire open or connector at charger/module not seated
Output driver in the controlling module (VICM/HPC2) faulty
Enable input of the on-board charger defective

Symptoms

  • Plug-in charging does not start
  • MIL on after two trips
  • Battery heating in cold weather may be unavailable

Repair estimate

DifficultyHardWorkshop job
Parts and labour€60–2,500
Time0.5–4 h

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

Parts involved

battery charger a enable circuitwiring harnesson board charger

Related codes

P0E62P0E63P0E64P2E35P0E65

References: gsi.ext.gm.com, gsi.ext.gm.com, law.cornell.edu.