OBD-II code · Powertrain (generic)
P0AD9 Hybrid/EV Battery Positive Contactor Control Circuit/Open
The control circuit of the HV battery positive contactor reports a control circuit/open condition. HV main switching cannot be commanded reliably.
Is it safe to drive with P0AD9?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyOpen in coil control wire
- PossibleOpen contactor coil
- Less likelyPin pushed back out of connector body
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
- P0AD6Hybrid/EV Battery Pack Air Flow Valve A Control Circuit Range/Performance
- P0AD7Hybrid/EV Battery Pack Air Flow Valve A Control Circuit Low
- P0AD8Hybrid/EV Battery Pack Air Flow Valve A Control Circuit High
- P0ADAHybrid/EV Battery Positive Contactor Control Circuit Range/Performance
- P0ADBHybrid/EV Battery Positive Contactor Control Circuit Low
- P0ADCHybrid/EV Battery Positive Contactor Control Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.