Engine-Codes - Generic - P0D21

P0D21 - Battery Charger Output Voltage Too Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?

P0D21 Possible Causes

  • Faulty Battery Charger
  • Battery Charger harness is open or shorted
  • Battery Charger circuit poor electrical connection

How do I fix code P0D21

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P0D21 code

Labor: 1.0

The cost of diagnosing the P0D21 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0D21 Meaning

The hybrid/EV powertrain control module 2 and battery charger control module monitor the battery charger high-voltage output and current output and ensures it is in the proper range and there is not a resistive short in the charging bus.

P0D21 More Information

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