Powertrain, generic · Hybrid propulsion

P0D92 Battery Charger Coupler Lock Control Circuit Low

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0D92 says the voltage on the lock control output stays too low, typically because the drive line is shorted to ground or the actuator draws far too much current, so the module cannot energise the latch properly and shuts its driver off. No manufacturer publishes this exact code. The hardware it supervises is described in patents: a small geared DC motor pushes a pin or cam across the plug latch (GM, US9279276B2), and a position sensor reports whether the pin really reached the locked end, otherwise fast charging is withheld (GM, US8936482B2). Which module drives the lock differs by maker (on-board charger at the VW group, drivetrain unit at Mercedes, SOBDM at Ford). The open-circuit case is P0D91, a short to supply P0D93; for the driver, the charging session simply never starts.

Likely causes

Lock drive wire chafed and shorted to body ground
Actuator jammed or binding, drawing excessive current
Water in the actuator connector at the inlet
Driver output of the controlling module defective

Symptoms

  • Charging session does not start after plugging in
  • Charge plug is not held in the inlet
  • Charging fault message in the cluster or app

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–600
Time0.5–2.5 h

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

Parts involved

charge port lock actuatorwiring harnesson board charger

Related codes

P0D91P0D93P0D94P0D96

References: patents.google.com, patents.google.com, law.cornell.edu.