OBD-II code · Powertrain (generic, extended)
P2DAB DC/AC Converter Control Module A Switch B Circuit Range/Performance
The DC/AC converter switch B response is outside calibration. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P2DAB?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySwitch aged - response slowed
- PossibleHigh-resistance contact
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Dcac Converter Module A Switch B, Wiring Harness, Hybrid Control Module
Related codes
- P2DA9DC/AC Converter Control Module A Switch A Circuit Range/Performance
- P2DA8DC/AC Converter Control Module A Switch A Circuit
- P2DAADC/AC Converter Control Module A Switch B Circuit
- P2DACDrive Motor A Temperature Sensor B Circuit
- P2DADDrive Motor A Temperature Sensor B Circuit Range/Performance
- P2DAEDrive Motor A Temperature Sensor B Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.