P0D21 GMC - Battery Charger Output Voltage Too Low
P0D21 GMC Possible Causes
- Faulty Battery Charger
- Battery Charger harness is open or shorted
- Battery Charger circuit poor electrical connection
How is the P0D21 GMC code repair?Start by checking 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.
What is the cost to diagnose the P0D21 GMC code
Labor: 1.0The cost to diagnose the P0D21 GMC 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.
- Engine Light ON (or Service Engine Soon Warning Light)
P0D21 GMC MeaningThe 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.
More InformationNeed more information on how to fix the P0D21 GMC code?
Get Access to Factory Service Manuals