P0A0B
High Voltage System Interlock Circuit A Performance
P0A0B is an OBD-II diagnostic trouble code meaning: High Voltage System Interlock Circuit A Performance. Common causes: open or short circuit in the interlock circuit, damaged or oxidized contacts in connectors. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Limitation of hybrid system operation
- Possible problems with charging the high-voltage battery
- Error message on the dashboard
Causes
- Open or short circuit in the interlock circuit
- Damaged or oxidized contacts in connectors
- Malfunction of high voltage blocking sensors
- Problems with high voltage relay
- Malfunction of the high-voltage system control module
How to Fix
- Visual inspection of interlock circuit wiring and connectors
- Checking the integrity of the interlock circuit
- Testing High Voltage Lockout Sensors
- Diagnostics of the high-voltage system control module
- Repair only from an authorized dealer
Related codes
Error P0A0B by Vehicle Brand
FAQ
What does the P0A0B code mean?
P0A0B is an OBD-II diagnostic trouble code that indicates: High Voltage System Interlock Circuit A Performance
What causes a P0A0B error code?
The most common causes of P0A0B include: Open or short circuit in the interlock circuit; Damaged or oxidized contacts in connectors; Malfunction of high voltage blocking sensors; Problems with high voltage relay.
How do I fix a P0A0B diagnostic trouble code?
To fix P0A0B: Visual inspection of interlock circuit wiring and connectors. Checking the integrity of the interlock circuit. Testing High Voltage Lockout Sensors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0A0B?
Do not drive — repair immediately
How much does it cost to fix P0A0B?
The estimated repair cost for P0A0B is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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