Powertrain, generic · Hybrid propulsion

P0D4D Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit Range/Performance

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modeNo

P0D4D means the charger's output voltage reading is electrically valid but fails to match the rest of the system. GM's second-generation Volt (2016-2019 tables) compares it with the traction battery voltage while charging is ready: a gap of more than 30 V sets the code, in 2019 after 320 of 400 samples taken every 25 ms, as a Type B fault with MIL after two trips. GM issued engineering information PIE0828 for 2022-2023 Bolt EV and EUV cars showing the MIL with P0D4D, P0D4E and P0D4F, root cause still under investigation. Kia lists P0D4D in bulletin 298 for the 2023 Niro EV among codes that, if active, lead to replacement of the integrated charging unit. Hard signal faults are P0D4E and P0D4F.

Likely causes

Output voltage measurement inside the charger drifted or inaccurate
Integrated charging unit failed (Kia ICCU, GM charger module)
Reference value from the battery voltage measurement wrong

Symptoms

  • MIL on (GM Volt, Bolt)
  • Slow AC charging or no AC charging
  • Check electric vehicle system message (Kia)

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–3,000
Time0.5–5 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

P0D4CP0D4EP0D4FP0D50P0D52P0D5C

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