P0D22: Battery Charger A Output Current Performance

P0D22 means the on-board charger does not deliver the high-voltage current it was asked for. GM's Volt compares actual and desired current in constant-current mode against a table: 150 of 300 samples set it in 2011, One Trip Type A; from 2014 a second part also catches a charger that was switched on, with more than 201 V commanded, but never enabled its output after 6 s. Mitsubishi's Outlander PHEV stops charging when target and actual differ by 3 A or more for 3 s. GM bulletins cite P0D22 with MIL and no charge on the 2011 and 2013 Volt (HPCM2 updates) and, in PIP6048, on the Lyriq, Optiq, Blazer EV and Equinox EV during level 2 charging, where reprogramming the BECM comes first. Voltage deviations belong to P0D20/P0D21, a shorted output to P0D23.

Symptoms

• Vehicle does not charge or charging stops
• MIL on after a charge session ends
• Problem shows mainly on AC level 2 stations

Most likely causes

• Charge control software in the hybrid or battery control module (GM PIP bulletins)
• Internal fault in the on-board charger
• Faulty output current measurement

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the codes with a hybrid-compatible scanner and write down the freeze frame data
2. Compare the reading with other engine data while varying the engine speed.
3. Make sure the battery cooling air intake is clean
4. Check the 12 V auxiliary battery, which can also trigger warnings
5. Leave any high-voltage measurements to a specialized repair shop

What each character of P0D22 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• D: Subsystem depends on the code range
• 22: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0D22?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0D22?

The most common causes are: charge control software in the hybrid or battery control module (GM PIP bulletins); internal fault in the on-board charger; faulty output current measurement.

Related codes

• P0D20Battery Charger A Output Voltage Performance
• P0D23Battery Charger A Output Shorted
• P0D53Battery Charger Hybrid/EV Battery Output Current Sensor Circuit Low
• P2E3CBattery Charger B Output Current Performance

Sources

• gsi.ext.gm.com: 11OBDG01 HYBRID Diagnostics
• gsi.ext.gm.com: 14OBDG01 Hybrid Diagnostics
• mitsubishitechinfo.com: M154950370001200USA
• static.nhtsa.gov: MC 11014639 0001

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.