OBD-II code · Powertrain (generic)
P0ADC Hybrid/EV Battery Positive Contactor Control Circuit High
The control circuit of the HV battery positive contactor reports a control circuit high condition. HV main switching cannot be commanded reliably.
Is it safe to drive with P0ADC?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to B+
- PossibleOpen contactor coil
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Pos Contactor, Wiring Harness, Bms
Related codes
- P0AD9Hybrid/EV Battery Positive Contactor Control Circuit/Open
- P0ADAHybrid/EV Battery Positive Contactor Control Circuit Range/Performance
- P0ADBHybrid/EV Battery Positive Contactor Control Circuit Low
- P0ADDHybrid/EV Battery Negative Contactor Control Circuit/Open
- P0ADEHybrid/EV Battery Negative Contactor Control Circuit Range/Performance
- P0ADFHybrid/EV Battery Negative Contactor Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.