Powertrain, generic · Hybrid propulsion

P0D4F Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit High

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modeNo

P0D4F is the high-side fault of the charger's output voltage sensor: the reading climbs beyond anything the battery could actually present. GM's 2011-2014 charger module for the Volt and ELR flags a decoded value of 482 V or more for 400 of 500 ms as a Type A fault with immediate MIL. In the 2016-2019 Volt the sensor delivers a pulse-width signal; 92 % duty cycle or more, or a line resting at 0 %, counts as high and is rated Type B. For the 2022 Outlander PHEV Mitsubishi sets the code at a sensor voltage above 3.5 V, about 632 V, held for 0.5 s, describes it as a short to supply, stops charging and replaces the charger/DC-DC unit. GM's Bolt EI PIE0828 names it too. The low counterpart is P0D4E.

Likely causes

Voltage sensor signal shorted to a supply voltage inside the charger
Measuring stage of the on-board charger failed
Charger software misinterprets the signal

Symptoms

  • AC charging refused
  • MIL on (GM)
  • Charging interrupted with fault message

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–2,500
Time0.5–4 h

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

Parts involved

battery charger hv output voltage sensoron board charger

Related codes

P0D4EP0D4CP0D4DP0D50P0D54P0D5C

References: gsi.ext.gm.com, gsi.ext.gm.com, mitsubishitechinfo.com, static.nhtsa.gov.