Powertrain
generic / SAE
P0ADF
Hybrid/EV Battery Negative Contactor Control Circuit Low
The control circuit of the HV battery negative contactor reports a control circuit low condition. HV main switching cannot be commanded reliably.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / DF
Possible causes
- Control wire shorted to ground high
- Internal short in coil medium
- Connector pins corroded - high contact resistance low
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2500 €
- Estimated time: 2–8 h
- Component: hv battery neg contactor
- Component: wiring harness
- Component: bms
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012