P0D22 on 2014-2015 Cadillac ELR — Battery Charger Output Current Performance
1 vehicles · 1 makes
Most Reported On
P0D22 is an OBD-II diagnostic trouble code meaning “Battery Charger Output Current Performance.” A hybrid/EV code documented in GM service information (Chevrolet Volt and related plug-in models) and used on other plug-in platforms. The hybrid/EV powertrain control module monitors the on-board battery charger's high-voltage output and current and verifies they stay in range; the charger runs in constant-voltage mode at the start and end of a charge cycle and constant-current mode for most of it. P0D22 sets when the measured charge current does not match the commanded value. The practical symptom is a charge session that stops early, charges slowly, or refuses to start, usually with a charging-system message on the driver information center. The vehicle will normally still drive on whatever charge is in the pack, and on hybrids it falls back to engine operation. This code is most commonly reported on 2014-2015 Cadillac ELR.
Common Causes
Diagnostic Tools
This is a powertrain code, so a basic OBD-II reader can read it. These read P0D22.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple code reader for engine (P) codes on many compatible OBD-II vehicles. It does not support every vehicle or hybrid/EV application, and it does NOT read body, chassis or network codes; confirm exact-vehicle compatibility before buying.
- Read & clear engine (P) codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth scanner with a companion app that reads beyond the engine module — ABS, SRS and transmission — plus manufacturer-specific codes on many vehicles.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X V3.0 Elite OBD-II Scanner
by LAUNCH
Handheld scanner covering the four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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FAQ
What does P0D22 mean?
P0D22 stands for "Battery Charger Output Current Performance." A hybrid/EV code documented in GM service information (Chevrolet Volt and related plug-in models) and used on other plug-in platforms. The hybrid/EV powertrain control module monitors the on-board battery charger's high-voltage output and current and verifies they stay in range; the charger runs in constant-voltage mode at the start and end of a charge cycle and constant-current mode for most of it. P0D22 sets when the measured charge current does not match the commanded value. The practical symptom is a charge session that stops early, charges slowly, or refuses to start, usually with a charging-system message on the driver information center. The vehicle will normally still drive on whatever charge is in the pack, and on hybrids it falls back to engine operation.
What are the most common causes of P0D22?
The most common causes of P0D22 are: Failed on-board battery charger module (most common), Open or shorted battery charger wiring harness, Poor or corroded electrical connections in the battery charger circuit, Damaged or corroded charge port / charge cord connector pins, Software/calibration anomaly in the charger or hybrid powertrain control module — check for applicable manufacturer bulletins before replacing parts, Degraded or failing high-voltage battery pack. The specific cause varies by vehicle.
How much does it cost to fix P0D22?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P0D22?
Au7o has documented P0D22 across 1 vehicle models from 1 manufacturers: Cadillac.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.