OBD-II code · Powertrain (generic)
P0A0B High Voltage System Interlock Circuit A Performance
The high-voltage system interlock circuit A reports a performance condition. Safety interlock chain may be compromised.
Is it safe to drive with P0A0B?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyInterlock signal drifted
- PossibleHigh-resistance contact in interlock chain
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Interlock Circuit A, Wiring Harness, Bms
Related codes
- U3512High Voltage System Interlock Circuit B Performance
- U3516High Voltage System Interlock Circuit C Performance
- U351AHigh Voltage System Interlock Circuit D Performance
- U351EHigh Voltage System Interlock Circuit E Performance
- U3522High Voltage System Interlock Circuit F Performance
- U3526High Voltage System Interlock Circuit G Performance
- U352AHigh Voltage System Interlock Circuit H Performance
- U352EHigh Voltage System Interlock Circuit J Performance
- U3532High Voltage System Interlock Circuit K Performance
- U3536High Voltage System Interlock Circuit L Performance
- U353AHigh Voltage System Interlock Circuit M Performance
- U353EHigh Voltage System Interlock Circuit N Performance
- P0A08DC/DC Converter Status Circuit
- P0A09DC/DC Converter Status Circuit
- P0A0AHigh Voltage System Interlock Circuit
- P0A0CHigh Voltage System Interlock Circuit Low
- P0A0DHigh Voltage System Interlock Circuit High
- P0A0EHigh Voltage System Interlock Circuit A Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.