P0D19Battery Charging System A High Voltage Interlock Circuit Intermittent/Erratic
- Generic OBD-II code · Powertrain
- How the car detects it
- P0D19 covers a charging interlock loop that drops out and comes back, so the signal flips between valid and invalid within a short time. Loose terminals, a connector that is not fully latched, a chafing wire that only touches over bumps and vibration-sensitive solder joints are typical causes. No manufacturer documents P0D19 publicly. GM's Volt and ELR tables show the checks applied to the same loop, namely low and high limits on the sensed share of a 5 V reference, and a Ford patent explains why intermittent interlock contacts matter and how a loop can be arranged so a brief interruption does not cut propulsion. CARB requires plug-in vehicles to monitor charging components. Steady faults are P0D15–P0D18, the drive interlock intermittent code is P0A0E. Charging may stop without warning.
- What you may notice
- Charging stops unexpectedly
- Intermittent charging system warning
- Likely causes
- LikelyLoose or spread terminal in an interlock connector
- PossibleHV connector in the charging path not fully latched
- RareChafed interlock wire making contact only under vibration
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.