Powertrain, generic · Hybrid propulsion

P0D88 Battery Charger Coupler Status Indicator Control Circuit A High

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0D88 is stored when channel A of the charge port status indicator sits at a high level although the driver is holding it off, typically because the line touches a voltage-carrying wire or the driver stage leaks. The fault is therefore seen in the switched-off state; GM's Volt evaluated its own charge-status LED (P0D2C) for short to battery only while the LED was meant to be dark. No manufacturer documents P0D88 publicly. The visible result is often the reverse of P0D87: channel A glows constantly or faintly, so the port may suggest a charging state that does not exist. A pinched harness at the flap hinge, a bridged connector or a defective output in the control module are the causes to check. Charging works normally; P0D86 and P0D87 cover open and grounded faults of the same channel.

Likely causes

Channel A wire shorted to a voltage-carrying wire (pinched harness)
Bridged or corroded connector at the indicator
Leaking or failed output stage in the control module

Symptoms

  • Indicator channel A lights constantly or glows faintly
  • Port shows a misleading charging status

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€30–500
Time0.5–2 h

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

Parts involved

battery charger coupler status indicator awiring harnesson board charger

Related codes

P0D86P0D87P0D8BP0D8EP0D2C

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